Justin Bieber Vs. Calvin Harris: Whose Underwear Shot Is Better?

Justin Bieber VS. Calvin Harris

Justin Bieber in his Calvins, or Calvin Harris in his Armanis? That's the question we want answered.

Harris is the latest star to appear in an underwear ad. The superstar DJ dropped his pants for Emporio Armani's newest campaign.

Bieber has bested both Nick Jonas and Mark Wahlberg in previous underwear polls. So will the "Baby" singer remain the brief king? Or will Harris prevail?