Justin Bieber Signs Autographs on Jay Leno?! (watch!) 1Justin Bieber has a little fun on the “Tonight Show” with Jay Leno. He dropped by for the opening last night (June 27) to sign autographs. WTF?!

The bit opened with Justin sitting in the studio lobby behind a table under the big sign “Tonight Show” sign, signing autographs.

The teen pop sensation sat at a table with a long line of very well behaved fans. That was a dead giveaway that something was up. Besides Justin just doesn’t hang around television studio lobbies.

Just then, Jay pops in to thank Justin for stopping by just to sign autographs. “What a great guy; signs something for every fan,” Jay says as he walks down the hall past waiting fans.

But wait what’s this? Who the hell are these fans? Watch below.