During Green Day's weekend two set, Armstrong again altered the lyrics to "Jesus of Suburbia," this time taking aim at the vice president. "Am I (stupid) or am I just overjoyed?"

If The Go-Go’s being back together wasn’t enough, they treated festivalgoers to a special live collaboration. As a pleasant surprise Green Day’s frontman Billie Joe Armstrong joined The Go-Go’s for a duet of their 1984 single “Head Over Heels.”