Bieber crashes Depp's press conference

Justin Bieber has crashed a press conference for the new animated film Rango, surprising actor Johnny Depp.

Depp, who plays the titular character in Rango, was giving a press conference with fellow stars Isla Fisher, Abigail Breslin and director Gore Verbinski when Bieber suddenly turned up, according to E! News.

"Man, I heard you were in the building," Bieber said to Depp, before giving him a hug and a handshake.

"Who's not a belieber after that?," Depp declared to the press conference attendees after Bieber left with his mother and their escort.

Rango opens in cinemas on March 4.