Panic! At The Disco's Brendon Urie joined on stage by former drummer Spencer Smith
Smith performed on Panic!’s first four studio albums .

That wasn’t the only special guest who appeared during the show. Fall Out Boy's Pete Wentz also made a showing, to wave a flag around through ‘Victorious’. Got to find something to do with your evenings, right Pete?
https://twitter.com/PanicAtTheDisco/status/762375040247693312









