The 17-year-old "What About Love" singer showed off his fit physique while filming a FlavorSplash commercial in Hollywood, Calif., on Monday, Jan. 13. Unlike shirtless selfie king the Biebs, 19, Austin's half-naked moment was captured by the paparazzi.
But, to be fair, Austin's had some fun with shirtless selfies, too. He Instagrammed a few back in October 2013, letting his fans know he was heading "back to the gym" after being hospitalized for a blood clot.
Unlike the Biebs, though, Austin isn't covered with tattoos—yet, at least. Justin, however, gets inked with new body art on the reg.
Back in 2012, David Letterman asked J.B. to do him a favor and not "go nuts" with the tattoos. "Because more and more, you see the 'mural' and like the Sistine Chapel," the late-night host joked. "It's too much."
Justin, perhaps unfamiliar with the iconic Renaissance artwork, assured Dave he was "not going for the Sixteenth Chapel."
Wonder how Austin measures up in the history department! In any case, Mahonies and Beliebers, time to weigh in: Which of your boys has the hotter bod?!