by Jen White (CHARTattack)

05/21/09 4:45pm

Montrealers Misstress Barbara and Sam Roberts paired up for "I'm Running," the latest single from Barbara's debut album, I'm No Human. The video, directed by Lisa Mann, features the two musicians running separately before finally banging into one another.

They spent a full 12 hours running around downtown Toronto to shoot the vid. And while the pair did their own stunts, I think Barbara had it worse — she did the whole thing in heels! (All I can say is: ouch.)