Who Billy Crystal is on first!
Thursday night on Late Night with Jimmy Fallon, Jimmy gathered a few of his famous pals to revisit Abbott & Costello's classic Who's On First? routine.
FINALLY viewers get to meet the team's first-baseman "Who," second-baseman "What," and third-baseman "I Don't Know." Press "PLAY" (above) to give yourself an old-timey chuckle.
Easily the best vaudeville act we've seen since Gypsy!