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!
It's no wonder Fallon is the front runner to take Jay Leno's job when NBC forces him to retire in 2014!
Tags: billy crystal, jay leno, jerry seinfeld, jimmy fallon, late night, late night with jimmy fallon