Peter Bjorn and John at Bowery Ballroom

You can always depend on Peter Bjorn and John for some good, clean fun.

Actually, Peter was having so much fun, he hit himself on the temple with his guitar. As a rivulet of blood trickled down his face (see above), you could hear all the women in the front gasp and murmur with concern.

You can see more photos on House List and additional photos at Brooklyn Vegan.