Tonight’s episode of Late Night with Jimmy Fallon was dedicated to Bruce Springsteen. Not only did the show feature jokes in the monologue and opening bits about “The Boss”, but Springsteen appeared for a lengthy interview as well as performed a few times. First, Springsteen joined Fallon (who was impersonating Neil Young) on a cover of Willow Smith’s “Whip My Hair”. The other two performances featured Springsteen with his E Street Band bandmates guitarist Steven Van Zandt…