Michael Cera visited Late Night this evening (after raiding his grandpa's closet) for a chat with Jimmy Fallon about a variety of topics, including his day with the Jersey Shore cast. Also discussed? Cera as King of the Photobomb.

This is Photobomb is a hilarious web site that features picture after picture ruined by a last-minute, unexpected visitor. For one reason or another, Cera began to appear on the site so much that Gabe over at Videogum asked in October if he was, in fact, the King of the Photobomb (Short answer: Yes).

On tonight's show, Fallon asked Cera about his photobombing adventures. Watch below as yet another Internet meme goes mainstream.

[Late Night with Jimmy Fallon]