Beiruting News

Katy Perry was forced to restart a performance of her hit Roar after a mistimed backing track revealed she was lip syncing.

The embarrassing moment came as the pop star performed during the NRJ Music Awards in Cannes on Saturday night.

But almost immediately it became obvious that the 29-year-old was not singing the same track as that being broadcast to the cheering crowd.

Instead Katy and her backing dancers were obviously reacting to a different part of the track.

Katy agreed to restart the track again, darting off the stage with her dancers before giving a second energetic performance.

This time her singing was obviously live, with Katy performing without a backing track.

The organisers of the show released a statement claiming a 'bad soundtrack' disrupted Katy's performance.