Jimmy Fallon is a big fan of Bruce Springsteen, as those who caught his exuberant Emmy Awards intro will know. But who knew that Springsteen was a fan of... Willow Smith? On a recent episode of Late Night With Jimmy Fallon, The Boss joined Jimmy (here reprising his brilliant Neil Young impersonation) for a mournful, bluesy take on Smith's viral hit "Whip My Hair,". Willow, the daughter of Will and Jada Pinkett Smith, is only nine years old, and her song has been covered by Bruce Springsteen. Not too many kids can say that.