VIDEO ~ Come Behind the Scenes of the 2017 BIKINI SERIES!!

Are you ready to come behind the scenes of the BIKINI SERIES?! As most of you know, we independently produce everything we do. We come up with the concept, dream up the themes and imagery (this year we were really feeling a ‘70s vibe!), design and test the workouts, and even pick the wardrobe to go with the Challenge vibe! It all comes from our passion and love for our Tone It Up Community!

This Bikini Series was even more special for us because it’s all about taking it back to where we began. After searching all summer for the next location, we decided to film everything where our hearts are…home in Manhattan Beach. This is the place that brought us together, where we became best friends, and where we started chasing our dream to create the #TIUcommunity.

So come BEHIND THE SCENES with us in the video below and see how we created and filmed the Bikini Series!! There’s so much magic that goes into it and we want you to see it all!

xxo K&K

You can also watch on YouTube & Apple TV HERE!

Thank you to our entire crew on set~ Jens, Peter and Keenan from Sypher and your amazing TEAM!  Also thank you to Jenna Anton, Ashley Kucich, Nicole Hill, Leckrone, Sarah, and our entire Tone It Up HQ!!! And thank you Jake Loskutoff for capturing these behind the scenes moments and where do we even begin— the best of the best SCOTT for putting this entire video together. So grateful!

First things first…

Bronze it up baby!

A friend will tell you that you need a tan…a best girlfriend will lather it on herself!

Welcome to our fitness trailer…

Our beautiful friend~ the talented Jenna Anton! She’s not only the most amazing make-up artist, she also brings the most beautiful energy and love to every shoot!

Between sticking to the Tone It Up Nutrition Plan and doing the 7 Day Slim Down before our shoot, we were ready to ROLL! Plus we were rehearsing all the Beach Babe workouts! We’ve never felt better or more lean and it’s all because of the TIUplan and workouts!

You girls are going to be in the best shape this summer- we were basically your test bunnies!



Shooting with our girlfriend Nicole Hill!

Favorite part of the day! 

Thanks for inspiring us every day #TIUteam!

Sending love to our Tone It Up Community


This is Karena’s best interpretation of a sea-monster! LOLLLL19 workouts done…

Thank you for your continued motivation, support and love…you are the reason why we keep working hard and are inspired to create these fitness and lifestyle challenges. We love you girls!

PS…there are 3 more weeks of the BIKINI SERIES +plus+ we’re all doing the 7 Day Slim Down together for week 9!!! The results are amazing!!! We can’t wait to see your Bikini Series success stories! You’ve got this…4 weeks total~ it’s officially GO TIME!




  1. It’s so amazing to see the behind the scene Video! I had so much fun watching it! You are full of positive energy that makes me smile, too :-)
    Thank you so much for inspiring us #tiugirls everyday! Keep on going, sweeties! XO Rici

    1. Thank you so much!!! You girls are all of our inspiration and motivation!!! xoxo

  2. Katrina- where did you get those flowery leggings?! They’re so beautiful! Just watched this video this morning while running!

    1. Yes! I hope they release a list of the brands/items from the shoot. Some of their swimsuits from the press photos are to die for! Total motivation to get ready to wear THOSE bikinis!

  3. I love that the 2017 bikiniseries was filmed at Manhattan beach- it brings back all the great vibes, and memories of my first one and motivates me even more…..
    ….and I bought myself roller skates again 😊like I had as a child, turquoise & rose of course. Sooo much fun.
    I’m so grateful I run into you both girls two weeks ago at manhattan beach. It still touches my soul and I bounced back into the programm after vacation even more – love you K&K many hugs, also to the tiu HQ !!! ❤️

  4. I always love the Behind the Scenes videos! Thanks for sharing! So inspiring how much work goes into these challenges you make for us!! XOXO Also – Katrina – where is that white bra (with mesh and sweetheart) from? Gorgeous!

  5. Wow!!! That was incredible, you guys put in so much work into everything you do for this community. We are forever grateful!! You girls have really inspired me to become my best self through this challenge and I really am so thankful I found this incredible community! I can’t wait to see what the future holds for both of you and this TIU Community! <3 -Lauren

    1. Hi Jodie! All of our workouts, including our premium workouts Beach Babe 5, are available online so you can watch them anytime, anywhere!

  6. I look forward to these videos every year!!! Love you all and thank you for everything you do!!!

  7. Loved watching this! Thank you for sharing. K&K you are so inspiring ~simply the best!! You and your amazing team do such great things for this community. I am so so thankful and absolutely LOVE being a TIU girl! 🤗

  8. How fab is that film!!!! It shows all the love, fun and passion that you put in and that we get out of being part of such an amazing community. Happy bikini series 2017 to you all xx

  9. Like all the other ladies on here, I love how fun and silly you girls are! I also love your workout fashion! Where are those blue floral pants and white mesh sports bra from?! Love them!

    1. The floral pants are Show Me Your Mumu! Mesh bra is Michi (I think!!!) but I’ll find out :)

  10. This is my favorite series yet! The workouts are challenging, but not too hard. The location is perfect. I enjoy watching beach workouts more than studio recorded ones because of the vibe and colors. They really are beautiful and I wish I could visit Manhattan Beach one day. Thank you so much for this program.
    You both did an amazing job!

  11. I love this video so much😭😭😭💕💕💕❤️❤️You girls are SO inspiring. I just feel so grateful to be apart of this team that’s filled with so much support and love!! Karena and Katrina, you guys killed this Bikini Series! It’s the first I’ve joined this team and I couldn’t imagine not being in this community now!!
    Summer Friess

  12. this was seriously the best ! so motivating to see how much work you all really put into every challenge and all the work outs! I love everything about tone it up, being apart of this community and K&K !!! <3 <3 <3 love it ! thank you for sharing !!!

  13. LOVE LOVE LOVE LOVE LOVE!!! This was way too much fun to watch and makes the #TIUcommunity feel so much closer. Thanks so much for putting together this behind the scenes! Oh, and thanks for the BIKINI SERIES!!!!

  14. Love y’all and this behind the scenes! Thanks for sharing :-) You’re both so inspiring and relate-able, and I think we all want to move to Cali to be your friends lol

  15. I love watching the Behind the Scenes videos! It shows how much work you put into each video and how much you care about the community! This morning when I woke up I was feeling very uninspired and unmotivated, but after watching this video I did 2 videos! Feeling great now and rejuvenated! Thanks K&K! You are the best! xo

  16. This was entirely too cute. Thank you ladies for your hard work… you seriously keep us all motivated and wanting to better ourselves!!! <3 Love you both!

  17. This. All of this is why I’m a Tone It Up girl. 😍 Friends & family ask me why I don’t just get a gym membership and workout there. The answer is because it’s BORING! I would not have achieved this level of success 👙 and gotten the strongest 💪🏻 I’ve ever been in my life if it wasn’t for the TIU team making exercise FUN 👯 for the first time in my life. I wake up every day happy to exercise because K&K make it enjoyable, attainable and real. I firmly believe you only make fitness a habit and a lifestyle if it’s something that brings you joy. This video completely encapsulates that! Thank you K&K for changing my outlook on fitness and for helping me create the body I’ve always wanted! 💗

  18. Love this video! You both are such inspirations, and I hope someday I am as beautiful and confident as you both are. Literally you both have the most amazing view on life in general, always laughing and smiling. Thank you for being such kind hearted and inspiring people! The Bikini Series is amazing!!

  19. Wow wow wow! I am so beyond impressed with you girls! Watching your videos and doing your workouts, you really forget how much hard work you put into making these videos happen for us because it looks so effortless on screen. But watching this made me think about how truly good you are at what you do because making it look so easy in front of a whole crew filming you like that must be so tough. Not just the workouts but the kitchen vids and everything. You are not actors, but you are so real and yourself in front of the camera and that has got to be so challenging. But you are amazing at it! Thank you soooooo much for everything you do! And I loooooved getting to see all the action that went into creating this series!
    p.s. It would be awesome to see a little video or post about what everyone in HQ does for you! I’ve gotten to know some of the staff with their own instagram accounts, but I am so curious!

  20. aaw mi <3 feels so happy after this video, you girls are so inspiring and have the best vibe, and we feel it :) :*

  21. Karena and Katrina – you two and your TIU HQ are amazing and this video shows exactly why you have such a huge TIU community! I’m stoked to finally be a part of this. Its my first bikini series and I look forward to all the ones to come. I love the spirit of this behind the scenes vid – it truly shows your thoughtful hearts, your creativity and love. Thank you!!!

  22. Ah! This gives me all of the feels! I love these girls and this community so much! Watching this makes me want to work harder and finish the series strong, and live everyday like it’s the Bikini Series! I love it – thank you K&K and the TIU Community for the love, support, and inspiration everyday!

  23. So much fun!!! My 5 year old daughter and I watched this morning!! She adores you guys and is hoping to make a workout video with me on the beach like K&K!!

  24. Thank you ladies so much for putting this together! I love getting to see behind the scenes. You are total #GOALS on so many levels from being boss BABES, BFFs and total gorgeous bombshells! I love being a part of this community you all have created. Thank you, thank you, thank you.

  25. This is so cool to see!! I grew up in Manhattan Beach, so I love seeing all the workouts on the strand. You guys are huge role models for me, and this community already means a lot to me after just a short amount of time. The fact that you guys are based out of my hometown and a place I come back to throughout the year makes it that much more special. It means a lot to have something like this in my life especially as I finish up college this next year. Thank you for everything xo

  26. This is my favorite part of any challenge…Behind the Scenes videos!
    The amount of work you put into making all this possible for us in incredible Karena & Katrina and your team!
    THANK YOUUUU !! 😭😭😭
    Love & Respect,
    Carlynne xoxo


  27. I loved watching this! Its so motivating and just makes me feel so happy – we are all part of it, this amazing community. Love K&K and the whole team. Thank you sooooo much!!!!
    Bless Brian for coming to pick them up after a long day! xo

  28. I always enjoy seeing the behind the scenes videos. Because you are so much fun it can be easy to forget what hard work it is. I am glad you filmed this series at Manhattan Beach. Exotic locations are special in themselves, but you cannot beat the California vibe. I appreciate that you actually do these workouts with us. Ever since I participated in my first Bikini Series in 2014 this thing has taken a life of its own. I always look forward to the series, and possibly because it coincides with some responsibilities that I have ending for the season it feels like that “school’s out” vibe of long ago. I so often end up in tears watching these kind of videos and I feel so silly, especially since I cannot seem to put into words just what it is, but you both, through what you and TIUHQ do, touch something very deep. It’s a primal joy, for serious lack of better words. Thanks for everything! Long may you squat! ;-D Much love to you.

  29. Loved this Video! After the bikini series, is there going to be another challenge to do? Or could we start the body love challenge from the beginning? Thanks so much! ❤️

  30. This is hilarious and inspiring. Love everything about it. And doing bossbabes with ease 💗

  31. I love you girls because you’re exactly like me and all of my girlfriends! It’s so fun and you’re both so relatable. Thanks for making a community that is so easy and enjoyable to be a part of. It’s one of my favorite parts of everyday- hanging out with y’all! Xoxo P.S. this is my favorite BS yet!

  32. Awe, I loved watching this and getting a glimpse of what it’s like to film. Looks like a blast! And the right inspiration to keep going strong! ❤️

  33. Thank you for everything! It was great to see all the behind the scenes footage. You are an inspiration! <3

  34. I’m pretty sure I smiled through this entire video! I love how dedicated you girls are to the TIU community, and how connected we all feel because of it. I look forward to the Bikini Series every year, and this one feels extra special! You’re both such an inspiration to all of us. Keep shining your beautiful light!

  35. Watching you guys have so much fun filming and just being happy, makes me really happy!! I love it!!

  36. I love this video! You are both so humble and beautiful and you inspire so many people on a daily basis. Thanks for sharing all of this footage so we could all see what really goes into your work. It’s simply amazing! Cheers to you both and your team!🥂💗
    Xoxo, Lo

  37. I loved this video. It made me laugh and smile and renews my motivation! One thing I love about Karena and Katrina is that you know when we can use some more positive energy! Love ya ladies and this team!

  38. LOVE THIS!!!! I got goosebumps y’all!! So sweet and fun and hilarious. Love this Community. Love our Trainers. 💖💖💖

  39. Love, love, LOVED this! Thank you so much for taking us with you behind the scenes! It was so much fun to watch and makes me appreciate all over again all that you do for us! You girls radiate light and warmth and joy and it’s such a gift to be part of this community! Thank you for always lifting us up and pushing us to be the best versions of who we were created to be! Yay for being a Tone It Up girl!

  40. Thank you so much! I can’t even tell you how much you’ve changed my life. I’ve never felt sexier in my life. And that’s saying a lot since I’ve had three girls! They are growing up watching you and me workout daily and I am so blessed they have role models like you (and me) for a healthy life style. Love you! 💋

  41. I loved watching behind the scenes! It was fun and inspiring. Thank you K&K and the TIUHQ for making this Bikini Series possible…my favorite one so far! Manhattan Beach is beautiful too!
    Kat…where are your white flower sweat pants from??

  42. LOVE LOVE LOVE all your inspiring, motivating, funny and positive ”Behind the scenes” videos K&K! It’s amazing to see you girls in action and staying so real and with open heart for everyone over the years! I must say, It made me once again so proud to be a TIU Girl. You are wonderful people and please keep doing all this inspiring work that helps so many people! You are just amazing and I LOVE YOU K&K!!! Sending all my Love to you girls! :)

  43. LOVE seeing all the hard work you guys put into your videos <3 It makes us work harder, too! You guys are so goofy and inspirational. We love you!

  44. Love it! So fun to see what goes on behind the scenes, you ladies have put in so much hard work this bikini series has been amazing!!!! Just watching this has given me that extra motivation to work even harder these last few weeks! (Ps pleeeeeease tell us where you get your wardrobe!!!) Love TIU ❤️❤️❤️❤️

  45. You girls are amazing! I love what you have created and what you continue to create every day. Thank you so much for sharing this behind the scenes video. The bikini series means so much more to me now. You obviously had to put in a lot of time and work. You make it a ton of fun too! Congrats on everything that you have accomplished, I am so happy to be a part of this community! Get it babes! Keep rockin’ xoxoxo

  46. Absolutely loved watching the behind the scenes! You girls are so amazing and such an inspiration. P.S LOVED LOVED ALL your outfits! Would love to know where you got everything. Thank you for putting so much love and hard work into creating these amazing work outs and recipes for us. Love you and the TIU community <3

  47. Is there any way to do the bikini series weekly workouts again when it’s over? I missed the beginning and would love to go back, but the daily workouts disappear!

    1. Hi Katie! You can just jump in with us now! If you want to look at the previous Weekly Schedules, you can find them all HERE!

  48. Such an amazing video!! This is why I love this community!! PS, what kind of self tanner do you guys use? :)

  49. This! So amazing!! I may have shed a few tears of joy, encouragement, determination, love, and overwhelming inspiration!!! Love you girls and this fabulous community that you’ve built and grown over the years. Serious goals. <3 <3 <3

  50. Wow!! So amazing! I had no idea you did all the workouts in 3 days!! You girls are so positive and full of life… I am so glad I am a part of this group…. I am seeing such changes in my body…. Thanks you for sharing is video, so motivating!
    Keep being “you” …. Hugs and love 🤗❤️

  51. Is it me or does this video just make you want to do all of the Beach Babe 5 workouts at once!? You guys are so amazing, thanks for everything you do!

  52. I love this behind the scenes so much! It reminds me of the series you had on Bravo where I discovered you gorgeous girls. Thank you so much for sharing xx

  53. I love seeing behind the scenes…I can’t even begin to tell you how much you girls help me. I love you both and the community. Thank you for showing up and making us beautiful. Truly life savers !!!!XOXOXO

  54. This was so fun to watch! I can’t lie, I got a little teary eyed from pure happiness. The love and commitment shines through you both, your crew, your team… everyone! So much laughter, so many smiles, so much hard work put into the Bikiniseries just for us! Thank you all so so much! I really enjoyed watching this!

  55. Every time I watch the Behind the Scenes videos I fall more and more in love with K&K and recognize what a special, beautiful community we all have. This Series has been so fun and I am just filled with so much gratitude for all that the #tiuteam and #TIUHQ does for us! 💜 @toneitup #tiubikiniseries

  56. Finally had the time to sit down and watch this!

    K&K you always say we keep you going and motivated, but honestly you 2 have led the way in creating this strong community of women. You both have put so much hard work and dedication into everything TIU is (obvs). But it has truly been an honor and a privilege to watch the transformation that you have been on along with the brand itself. As a TIU girl from BB2 to present seeing how much things have changed with production and the whole operation makes my heart full for you!!!

    I’ve got all the feels watching this and it just inspires me to push harder and keep going. As Lisa said it’s hard to put it into words, but I have nothing but the utmost respect for you and HQ, we appreciate everything you do for us!!!!!

  57. K&K, I live vicariously through you both! haha This was such an amazing video and experience. This bikini series was my first series with the #tiuteam and I absolutely loved it. It is incredible how much work, effort and energy goes into series’ such as this and it was so fun to watch the behind the scenes to see your team and crew work their magic. K&K, I am so happy and honored to be a part of such an amazing community. Your constant support and posts are so motivating. Although, we dont normally meet our fellow #tiusisters, this community feels like they really care about one another and that is so hard to find sometimes. It is so difficult to developling friendship and this series has made me feel like I have actually found a group of girls that are all on the same page that all love the same things. K&K you inspire me to build long lasting friendships, stay healthy and live life to the fullest. :) Love you girls <3

  58. I finally watched this today. So inspirational! So much love and fun. My favorite thing about this community is the sense of how fun it is to workout and be strong–it’s not a necessary evil, it’s all about laughing, strength, and being the best you.

  59. This was SO much fun to watch – I never realized how work went into these series! I truly love you both K&K for inspiring me every day to become a stronger, fitter person and not just worry about how I look.

    Thank you for putting the MOST fun workouts ever! I have a blast doing them and feel empowered after every workout!

    I hope you never stop making them! xoxo

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