The Pop duo were performing ‘Bring it on’, a song off their new album ‘Double Trouble’ when Peter Okoye apparently stepped too close to the centre edge of the five-foot elevated stage and fell off. He tumbled and landed on the floor, hitting his back against the protective metal barricades used to shield fans from the stage.
https://www.youtube.com/watch?v=lKaf2s0bDnc