I love this video of the Jesus and Mary Chain playing on Letterman in the early '90s.
The core of the band, the Reid brothers, were the epitome of cool, always with shades and black clobber, never smiling. For this important US tour, their management arrange to have appropriate session players to perform, but it seems that there was a communication error, as this bass player is definitely at the wrong gig...
http://youtu.be/NsuGek8WNUs