'"On September 21, 2012, while Green Day was performing at the iHeartRadio music festival, Armstrong stopped while performing "[[Basket Case (song)|Basket Case]]", because he believed the group's time was being shortened, possibly to extend R&B artist [[Usher (entertainer)|Usher]]'s performance.Angered, Armstrong began ranting while a screen in the rear of the audience was labeled "1 Minutes Left", saying "You're gonna give me one fucking minute?