10. Serena Williams

A dedicated pro tennis player, Serena Williams recommends using a stability ball and resistance bands to increase overall core strength. This helps to promote a more lean and strong body and in turn, create that stellar curvy bottom that we all yearn for!

9. Iggy Azalea

This pop star sensation credited her love for lunges and committing to challenges like the 30 day squat challenge to help build her perfect b**ty! Iggy promotes eating healthy by starting her day with a healthy smoothie with kale, organic fruits and gogi berries.