Bob Dylan - 'Jokerman' (1984)
In some alternate universe, Bob Dylan hit the road with New Wave band The Plugz during the Reagan era and completely reinvigorated his career; in our universe, however, they simply backed him for three songs on Letterman in 1984. It's a real tragedy, as this is, far and away, Dylan's best TV performance to date, as well as one of his single best musical moments of the 1980s. When he went on tour later that year, he let Bill Graham pick the band and he wound up with Mick Taylor, Ian McLagan and other vets. Those guys are obviously great, but they lacked the Plugz's raw power. Still, we'll always have this one-off.