Veteran rocker performs 'School's Out' in Norway with 'Tik Tok' singer

Alice Cooper made a surprise performance during Ke$ha‘s concert in Oslo last night (July 5).

The veteran rocker made an impromptu appearance, joining the ‘Tik Tok’ singer onstage for a rendition of his classic track ‘School’s Out’.

In a post on her Twitter page after the show, Ke$ha wrote, “Thanx for coming to Oslo to do ‘School’s Out’ with me dad. Legend. FUCKING Legend.”

Cooper later replied on his own Twitter page “Thanks Keshasuxx! Next time our stage, and be sure to bring some band aids (sic).”

The veteran rocker also surprised Foo Fighters fans in Milton Keynes over the weekend when he joined Dave Grohl and co onstage to perform a medley of songs.

Last month he also shocked his own fans during a gig in London when he invited Hollywood actor Johnny Depp to join him on guitar.

Ke$ha also briefly joined Cooper at his Nashville, Tennessee gig last October.