Directioners, here’s an early Christmas gift for you. Two days after their Saturday Night Live duties as the musical guest, One Direction’s Harry Styles (who had a dance party with Kristen Wiig), ...

Before "Late Night" began Thursday night, viewers got a surprise clip of Jimmy Fallon, The Roots, and Robin Thicke playing a cover of the summer hit "Blurred Lines" with kids' instruments. Members of ...

Backstage before the show, Jimmy, Mariah Carey, and The Roots grabbed some instruments you'd find in an elementary school classroom and stopped by the Late Night "Music Room" to sing Mariah's holiday ...