Music

'What the f**k are the words?' he said in front of the microphone while in the middle of performing his song 'Christmas Eve'.

• Dec 10, 2015

AceShowbiz - Justin Bieber flubbed one of his songs a little bit during his "An Acoustic Evening With Justin Bieber" concert in Toronto recently. The 21-year-old heartthrob was in the middle of performing his own holiday-themed song "Christmas Eve" when he forgot the lyrics and dropped the F-bomb in front of the audience.

As seen in a video from the performance below, the Biebs crooned the track from his 2011 Christmas album "Under the Mistletoe" while being backed by acoustic piano. Midway through the 30-second clip, he stopped singing and spoke into the microphone, "What the f**k are the words?" The audience erupted in laughter before the Canadian superstar went into the second verse.

Boy said "what the fuck are the words?" While singin a Christmas song to a bunch of white people... Bieber a savage pic.twitter.com/AQnNSPFQLr

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— � � (@_ASAPLAME) December 9, 2015

Bieber is currently promoting his newest album, "Purpose", which arrived last month. He has just added European dates to his "Purpose" tour which he will launch next year. The "Sorry" hitmaker is set to visit 64 North American cities starting next March before bringing the tour to Europe in October.