Beyoncé Performs ‘Countdown’ on ‘Late Night with Jimmy Fallon’ [Video]

Beyoncé was back on “Late Night with Jimmy Fallon” for the second time. Backed by The Roots, Queen B nailed her performance of “Countdown,” looking gorgeous in a little black dress. If you’re wondering why she doesn’t look pregnant, that’s because the appearance was taped in July before she announced her pregnancy.