Know It All with Steve Martin and Martin Short

Steve Martin and Martin Short face off in a game of knowledge and deception to see who can name more things in different categories before time runs out.

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The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives.

Know It All with Steve Martin and Martin Short

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#JimmyFallon

[Kha]

Type of ball
Martin: testicles
Steve: prove it ! 😂😂😂

[lynnturman]

I like Martin, but Martin is my favorite.

[EuropaTwin]

I love how Steve Martin is just done with Martin Short when he says "A play!"

[amritb]

The energy in that room can probably power a spaceship

[MadMax-usih]

3:17 steve got the word gay after watching martin say "things that rhyme with play" like that 😂

[eightysev]

I love how offended Marty is every time he's challenged

[k]

What are the audience wearing gags? This was hilarious!

[jamesdunn]

I was at the taping it was awsome . We had so much fun. Jimmy was totally awsome in person spoke to audience on a one on one type Q& A conversation while they were setting up stage for Avril. It was a great time everyone that worked there was great and super friendly will definitely go back. It was a blast and what an incredible guest line up we so lucked out . Thanks for a great day out . Huge fans

[jrobertheath]

I literally always laugh at Martin Short's 10-second ball thought.

[nicklang]

What just happened!? It’s like being funny makes you immune to the rules of the game. I love these guys!

[linabeth]

I love these two! Wish this video was longer though.

[skye]

martin throwing this for the sake of comedy. love it

[l.l.LLS]

We need more of these two in our lives!!!! Love them!!!!

[dorpersatdawn]

Can you imagine living in a house with these 2 lol, you would not get a minutes rest, it would be gag after gag after joke you'd literally die of laughing

[ashleyjoramo]

This was too short! I need to see more of these two!!😂😂😂😍😍

[johndelacruz]

Wow. This is one of the most hilarious appearance ive seen in awhile in any talkshow day or night

[Yaylpk]

Can they just go on for another hour? They’re so entertaining.

[canadianroxy]

Too funny, these two are legendary comics for sure

[ayumi]

Things that are green

Martin: Your urine sample!
Steve: I-it's, I know it's purple. I know it.

Me: 😂

[suzyq]

Fancy standing between two comedy legends .. intimating 😂