It's time for some PT! This our favorite 20-minute lower body workout that shares the name of a sacred text. And yes, we do need to be that specific! The Butt Bible is the most hilarious exercise regime you'll do today. With informative commentary such as, "time to meet the hamstring- the assistant to the butt!", host Paulina is like a Viking Jillian Michaels. You'll laugh, you'll cry, you'll squat. Tell you what, get started now and come right back to tell us what you thought. You've got 22 minutes- go!