If there’s anyone who knows how to get rock hard abs and tight glutes its Dolvett Quince. Not only has he sculpted the bodies of countless celebrities—Angela Bassett, Boris Kodjoe, and Justin Bieber—but he encourages (ok, yells at) everyday people to lose extra pounds on NBC’s The Biggest Loser. He also believes in the importance of reshaping yourself mentally in order to transform physically, which is why he swears by LifeKraze, a new app that helps you keep track of what your friends are accomplishing physically and encourage them along the way.
So we asked America’s most sought-after trainer to give us tips on how to nail the perfect trainer. And, most importantly, how much they charge.