Watch: Panic! At The Disco & Cyndi Lauper perform 'Girls Just Wanna Have Fun' together live.

After starring in the Broadway musical 'Kinky Boots' last year (with music and lyrics written by Cyndi Lauper), Brendon Urie was tonight joined onstage by Lauper herself to perform 'Girls Just Wanna Have Fun' live during Panic! At The Disco's show in Uniondale.

Watch fan-filmed footage of the performance below...