Biffy Clyro To Headline Reading and Leeds Festival Biffy Clyro have been announced as headliners for Reading & Leeds Festival. Biffy Clyro have topped the bill twice in the past and will make it three as they’ll replace Queens of the Stone Age on the Main Stage West in August. The group – made up of Simon Neil and brothers James and Ben Johnston – said: “We are delighted and honoured to be headlining Reading & Leeds for a third time. “We cannot wait to get out there and play for you all again after such a tough year… It’s gonna fuck!”