Austin Mahone showed off a super hot pic of himself flaunting his abs in the rain, and he seriously couldn't look any better! The cute photo inspired us to round up more of our favorite guys' shirtless snaps.
Click through the above slideshow to see One Direction, Cody Simpson, Justin Bieber, Ross Lynch and other stars showing off their six packs!
Which guy looks cutest shirtless? Vote in the comments!