But the proof is in the pudding! Or we should probably say in the bikini! LOLz!
Lucky for us, Mel decided to share some of her secrets as she exchanged tips with Perez on how to stay in shape!
We're not sure how early we're willing to wake up for a workout, but we guess we can give up a few hours of sleep if it means we can have a body like hers!
Ch-ch-check out some of her tips (above)!