New Year, New You in 2014

Hollywood's Weight-Loss Winners!

Kirstie Alley, Kellie Pickler, Jonah Hill and more share the slim-down secrets that really worked

TIM MCGRAW

Dropped 40 lbs.!
Blaming his age for his steady weight gain, the country superstar admitted that at 44, "you can't eat as much, and you have to work out twice as much." But the singer quickly got his body back into shape by cutting down on burgers and adding a 5-mile run to his pre-show ritual. "I feel young," he says now.