Christmas came early at "Late Night With Jimmy Fallon" on Thursday, as the host teamed up with a couple of comedy legends to recreate the classic bit made famous by Abbott & Costello, "Who's On First".

With announcer Steve Higgins in the bewildered Costello role and Fallon as Abbott, the "Late Night" version of the sketch added on to it by actually bringing out players Who, What & I Don't Know, played by Billy Crystal, "Late Night" head writer A.D. Miles, and Jerry Seinfeld respectively.

Check out the clip above and then tell us about some of your all-time favorite comedy bits.

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