02/12/2011 10:23 am ET | Updated May 25, 2011

Aziz Ansari: 'Jay-Z Will Never Spill Mustard On His Shirt' (VIDEO)

If you want to hear an embarrassing, true and ultimately charming tell of a regular Joe's run-in with a celebrity, Aziz Ansari ("Parks and Recreation") has long been your guy. Of course, he's now a celebrity himself, so the tales of awkward paths crossed have become a little more grand in scale.

Where once you might have heard him tell a small NYC audience about how he wrote a mash note to Scarlett Johansson and dropped it on her table after spying her at a 10-cent wing joint in the East Village, now you'll hear him tell Fallon about how he bombed after being called on stage to tell a joke by Jay-Z on New Year's Eve.

As this story shows, no matter how successful you become, there's always someone more successful in the room who lives by a different set of rules.