Two Hot Guys Star in Instagram’s Most Popular Photo of 2013 — Guess Who? (PHOTO)

Instagram has heralded its "most popular photo on Instagram this year," and the winning snapshot earned an epic fan base. So far, 1.5 million users have "liked" the image.

Why the massive following? The pic combines two of Hollywood's hottest guys. These dudes are talented and also easy on the eyes.

One is an actor who occasionally raps, the other is a singer who occasionally raps and sometimes acts.

Drumroll, please. Now click through for the winner!

12.13.2013 / 12:00 AM EDT by Dan Clarendon
Related: Celebrity, Guess Who?, Hot Guys, Justin Bieber, Movies, News

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