Justin Bieber fans are losing their minds after the star “accidentally” tweeted a photo of his naked rear end.

My how that pop star has grown. Justin Bieber’s ever changing face has made him the target of celebrity plastic surgery watchdogs, including Hollywoodnose.com, who have insinuated that Bieber has changed his beak.  Let’s take a look at before and after pictures of the star.

Deputy Editor, Rolling Out