From Zac Efron to Mario Lopez, see these sexy stars take their shirts off
"When you are touring, the physical energy it takes to put on shows tends to keep you fit," the singer (in Saint-Jean-Capt-Ferrat, France in October 2012) tells Men's Health. Urban also powers through four-days-a-week cardio workouts on an elliptical machine and light weight training. "What I need to start doing on top of that is yoga. It's hard, but it's definitely in my future."