Justin Bieber being sick on stage
Media playback is unsupported on your device

Justin Bieber is sick on stage during concert

1 October 2012 Last updated at 17:17 BST

Justin Bieber has apologised to fans after vomiting whilst on stage in the US on Saturday night.

He was performing at a sell out concert in Glendale, Arizona as part of his Believe tour of America.

An online video shows the the singer being sick and leaving the stage.