From Zac Efron to Mario Lopez, see these sexy stars take their shirts off
A shirtless Donovan went for run and gave onlookers some eye candy in Hollywood in July 2011. The 90210 stud tells Men's Health he hits the gym daily and ditches the city on weekends to work out on the beach. "There's nothing better than keeping fit," says Donovan. "It gives me energy and helps me think more clearly."