mens-fitness-kellan-lutz.jpg Kellan Lutz graces the latest cover of Men's Fitness, and the Twilight hunk proudly shows off his abs (and arms!) of steel.

So what does he do to keep his bod in perfect shape? "I like to wake up with the sun around 6:30," he says. "I'll just go for a run, drop and do some push-ups, run some more, do lunges, grab the rings, and do pull-ups."

Kellan plays the Greek god Poseidon in the upcoming action flick Immortals, so we'll be seeing more of his manly muscles on the big screen this November. Kellan reveals that he likes to mix it up when it comes to his workouts, telling the mag, "I love mixed martial arts, weapons training, guns, knives, driving fast cars, and motorcycles. I love it all."