When it comes to shaping a booty, there are few people who know better than Harley Pasternak. The man has trained and sculpted countless famous butts, including Kim Kardashian, Katy Perry, Rihanna, Maria Menounos . . . the list goes on!
We asked Harley what the secret was to a strong, powerful butt, and he immediately had a laundry list of exercises to try. Here are the moves he uses when training his curvaceous clientele.