Bad news for the Biebs.
Following his performance at last night's Billboard Music Awards, viewers flocked to social media to accuse the singer of lip syncing, Hollywood Life reports.
During his high-energy performance, Justin was accompanied quite obviously by a backing track, but what has so many complaining is that he didn't even try to maintain the illusion that he wasn't lip syncing. At one point he's even seen leaving his mic hanging by his side as his voice blares from the speakers.
What do you think? Check out clips from his performance below.