There is probably no funnier bit in comedy history than Abbott and Costello's classic "Who's on First?" There is seemingly no way to improve upon the bit, but Jimmy Fallon succeeded.
On his late night show Thursday, Fallon was joined by comedy legends Jerry Seinfeld and Billy Crystal and gave a standout example of comedic timing.
Who's on first? What's on second? I don't know is on third. If you are at work and watching this, make sure you look around so you don't get in trouble when you laugh.