Watch: Arcade Fire, Cyndi Lauper sing 'Girls Just Wanna Have Fun' live
The legendary singer was in town to sing a blues set at the event, and AF was there to, naturally, headline. Regine Chassagne essentially passes with a "karaoke" rating, and the pizzicato violin solo is just adorable.
I'm so glad I have this off my chest.
Arcade Fire are headlining Bonnaroo, Montreaux and a load of other festivals this summer. All dates through Sept. 3 are here.
[Video after the jump...]