There's been a lot of talk about Justin Bieber eating a burrito sideways. If you haven't been keeping up, it actually isn't even him in the photo. The guys at Yes Theory set up the prank knowing it would go viral and unfortunately Bieber had to take the brunt of a hilarious concept. Well, Katy Perry jumped out the woodwork to say she knew it wasn't him from the start. "I knew it wasn't the hair was too clean," Perry commented. Damn. Such shade. Not sure if it was this comment or his own personal preference but Bieber has since shaved his head. Though the burrito wasn't him, it made for a great Halloween costume. Peep below and tell me how I did.