Paul Shaffer is a Canadian musician. He was bandleader for David Letterman's late-night shows for over 30 years, leading the World's Most Dangerous Band and subsequently the CBS Orchestra. Shaffer was a member of The Blues Brothers and has released occasional albums, including Coast to Coast. He has performed popular songs such as Funky Nassau with Dan Aykroyd and John Goodman, When Will I Be Loved with Stevie Nicks, and Not Just Knee Deep. Shaffer has also appeared in the documentaries Love, Gilda and Chuck Leavell: The Tree Man, as well as the film This Is Spinal Tap.