Frank Carter had to make a trip to A&E at the Stoke leg of Gallows current UK tour.
The singer was bundled off stage whilst play fighting with one of the crowd, smacked his head and immediately started bleeding.
He finished the track and was then whisked off to hospital leaving younger brother Rich to pick up the mic for Orchestra Of Wolves and In The Belly Of A Shark.
Carter is said to be fine and will continue the tour as usual.