Last weekend numerous famous faces showed up at the annual POP Montreal "POP vs Jock" basketball game; Arcade Fire's Win and Will Butler, Bon Iver's Justin Vernon, and the Strokes' Nikolai Fraiture all played their part for charity, and at halftime they picked up their instruments and covered White Stripes' 'Seven Nation Army' and Phil Collins' 'In The Air Tonight'. Joining them were Regine Chassagne of Arcade Fire, and A-Trak.

Watch both performances below, courtesy of Stereogum.