Do you like Britney's new song "WORK B*"? Well, I like her overall message...what can I say!? So sounded perfect for a song challenge! We're doing single legged situps for 4 min. Get ready for an AWESOME ab challenge. Can you hang? Invite your friends and see who can last the longest! ♥ INSPIRATIONAL SHIRTS: https://www.popflexactive.com/ ♥ BLOG: http://www.blogilates.com ♥ FB: http://www.facebook.com/blogilates ♥ TWEET: http://www.twitter.com/blogilates ♥ PINTEREST: http://pinterest.com/blogilates ♥ INSTAGRAM: http://www.instagram.com/blogilates Video filmed and edited by Brad Etter ***** Cassey Ho is a certified Pilates and fitness instructor, winner of YouTube Next Trainer, and was also recently named FITNESS Magazine's Best Healthy Living Blogger.

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