#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ I'm sure you guys are as excited as I am that my good friend Rosanna Pansino is joining us for the 100 Ab Challenge today!! Normally I give my friends a little break and let them choose one of the easier moves, but NOT TODAY!! Sorry (not sorry), Ro. We'll be doing 100 sit ups, but if you do start to get tired, feel free to switch to crunches and only come up halfway! Subscribe to Rosanna's channel!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ Today's 100 Ab Challenge is going to be just magical cuz I have my friend Tiffy, creator of iHasCupquake, here!! Today we're doing 100 Russian twists, and you can choose from three levels of torture! Subscribe to Tiffy's channels!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ I keep saying I want EVERYONE to try the 100 Ab Challenge- that even means new moms!! Yep, it's possible cause today I'm being joined by my friend Geo Kwan, creator of JustKiddingFilms and Barbell Brigade, AND mom of a one-year-old!!! If Geo can do 100 scissors today, so can you! Subscribe to Geo's channels!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ How is it already Day 13 of the 100 Ab Challenge?! It's FLYINGGG by! I am going HARD on you guys today with Butterfly Sit Ups! I think my friend & today's guest Matt Santoro put it the best... "I'm ready to die". Lol. Subscribe to Matt's channel! https://www.youtube.com/user/MatthewSantoro Follow him on IG!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ If your reaction to seeing Caleb Marshall (aka The Fitness Marshall) in the thumbnail was "oh no, today is going to be HARD"... YOU WERE RIGHT!! Day 14 of the 100 Ab Challenge is all about hip twists! If you're getting tired, you can modify by resting on your knees, but whatever you do, DON'T STOP!!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ You guys, not only is today's guest a celeb trainer BUT he also has the craziest abs I have EVER SEEN! I put his IG handle below so you can see his abs for yourself! Follow Kenta on IG! https://www.instagram.com/kentaseki/ Today we are doing 100 star abs! And guess what? Once you finish these you will be HALFWAY DONE with the 100 Ab Challenge!!!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ Not only is today Day 16 of the 100 Ab Challenge, but it's also... MY BIRTHDAY! My big bday wish? For you ALL to do 100 eagle abs with me and my sister Jackelyn RIGHT NOW!! Follow Jackelyn on IG! https://www.instagram.com/jackelynho/ Workout starts at 1:58! Here is where I get all of my music!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ I am SO excited that my friend Livy is joining me for the 100 Ab Challenge because she is the most flexy person I have ever met, and I know we'll get in a great stretch afterwards!! We're definitely gonna need it after... 100 BOAT CRUNCHES!! Subscribe to Livy's channel! https://www.youtube.com/user/fiercelivy Follow her on IG!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ Today's 100 Ab Challenge is gonna be a TOUGH one, and you have my friend Jason Chen to thank for that! Jason actually chose to do 100 of one of the HARDEST moves of the challenge - side plank rotations - with us today and I think I might be more scared than he is!! Are your shoulders and obliques ready?! Subscribe to Jason's channel!

#100AbChallenge printable: https://www.blogilates.com/100abchallenge-begins-jan-1st-you-in/ DAY 19!!!!! I'm so happy to have my good friend Lindsey Stirling here for today's 100 Ab Challenge because this girl DOES NOT QUIT!! So you're right, Lindsey I am going to kill you (and you guys too!!!) with REVERSE CRUNCHES!! Ready to blast some lower belly fat?! Subscribe to Lindsey's channel!