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11 June 2012, 16:02
The 'Boyfriend' flashed his abs as he took to the stage at Wembley Stadium in London.
Justin Bieber revealed his six-pack during his performance at the Summertime Ball on Saturday (9th June) in London.
The 18-year-old singer flashed his abs as he sang recent hit single 'Boyfriend'.
The incident sparked hysteria about Justin's 80,000 fans who made themselves heard throughout the day at Wembley Stadium.
Justin was not the only male star to reveal their six-pack at the event, the singer's mentor Usher and Flo Rida also bore all for the audience.
VIDEO: Watch the moment Justin Bieber flashed his abs at the Summertime Ball.
Justin Bieber was joined by Usher and Carly Rae Jepsen during his performance, which saw the singer preview a host of new songs from his forthcoming album 'Believe'.
The star also played classic song 'Baby' and invited a fan on stage from the crowd during his action-packed performance.
Check out a photo of Justin Bieber flashing his six-pack below:
'Believe' is Justin's second album and is due to be released on 18th June. The album includes a collaboration with Drake, as well as 'Boyfriend'.
Meanwhile, Justin was spotted enjoying an Indian meal after his performance at Wembley Stadium. The singer wore an eye-catching Tiger-print jacket for the night out.