Justin Bieber causes chaos at Selena Gomez concert
Earlier in the day, Bieber had tweeted a message to his 11 million-plus Twitter followers announcing he was in Canada. According to the U.K.'s Daily Mail, that was just an attempt to throw his rabid fans of his track.
But word quickly spread when the Bieb turned up at Mizner Park Ampitheater and the pop prodigy had to escape using a back door. Bieber reportedly "narrowly missed" being caught by a horde of screaming tween girls.
Before he was spotted, Justin had been enjoying the show from the wings of the stage with pal Sean Kingston.