Teen Choice Awards Fashion Face-Off: Kellan Lutz vs. Taylor Lautner

No wonder Kellan Lutz has been doing so many push-ups.

The actor must have known he'd need to be in shape for this challenging Fashion Face-Off.

Indeed, friends have become foes, as both Lutz and Twilight Saga co-star Taylor Lautner showed up on the red carpet of last night's Teen Choice Awards.

Each young hunk went conversative, as Lautner even donned a tie and vest, while Lutz was comfortable in a collared shirt and sweater.

What do you think of these looks? Which star pulled his off better? Chime in below!