Entertainment

WATCH: ‘Who’s on First?’ with Billy Crystal, Jerry Seinfeld

Those corner infielders sure look familiar …

Jimmy Fallon dusted off Bud Abbott and Lou Costello’s iconic “Who’s on First?” baseball skit on last night’s episode of “Late Night” – with Billy Crystal and Jerry Seinfeld playing infield for the St. Louis Wolves.

The comedy routine involves a manager describing his players – but all of the players’ names are also non-responsive answers.

So the first baseman’s name is Who. And the second baseman’s name is What. I Don’t Know plays third.

Bedlam ensues.

When Crystal (Who) entered the black-and-white skit, he punched his fist into his mitt and threw an imaginary baseball, the lifelong Yankees fan connected to the game once again.

In his latest movie, “Parental Guidance,” he stars as a faded minor league baseball announcer.

Seinfeld, a rabid Mets fan, famously appeared alongside star player Keith Hernandez on “Seinfeld.”

Where Crystal was scheduled to appear on the episode, Seinfeld’s entrance was a surprise. The audience responded, showering Seinfeld with a 20-second applause that halted the skit – and caused Seinfeld to tip his cap.

“Late Night” regulars Steve Higgins (playing the confused baseball fan) and A.D. Miles (What, the second baseman) also appeared in the segment, a throwback to comedy’s vaudeville days.