Last night, the Who performed on The Tonight Show Starring Jimmy Fallon as a part of their The Who Hits 50! Anniversary Tour, marking their first appearance on American late-night TV since their 2006 Letterman performance (and their first full-band appearance since 1967 on The Smothers Brothers Comedy Hour). The band played the full seven-minute version of their 1978 classic “Who Are You,” which is now forever linked in my mind to this great scene from Louie. Watch below.