How to Get Your Best Butt Ever, As Shown By Celebs on Instagram

Consider these stars your new personal trainers

GET DOWN TO THE FLOOR

Julianne Hough swears by this Body by Simone move, which calls for one rubber ball. All you need to do is tuck the ball behind your knee and raise each occupied leg up and down, alternating legs after each set. The workout targets both the glutes and hamstrings. What more can we ask for?