Late Night Highlights: Jack Black and Jimmy Fallon Top David Bowie and Bing Crosby's 'Little Drummer Boy' Duet

First, Jack Black and Jason Segel starred in an animated "Little Drummer Boy" duet. Then Will Ferrell and John C. Reilly cranked out their own Funny or Die version. Unwilling to be topped, Jack Black performed a new rendition of the holiday classic with Jimmy Fallon while wearing swim goggles and covering himself in paint on last night's Late Night. Elsewhere, Emma Stone recalled her Easy A sex mishap, Reese Witherspoon remembered the drunken flight she took with Chelsea Handler and Kristen Schaal talked about the joys of jumbo checks.

4. The Liberation of a Giant Check

When Kristen Schaal visited Conan last night, she revealed that she actually quit her New York City waitress gig with a comically oversized check in hand.

3. Easy A is For Asthma-Induced Sex

Recent Golden Globe nominee Emma Stone debuted her new blond Spiderman 'do on The Tonight Show before showing off some home videos and explaining her embarrassing Easy A medical emergency.

2. Reese Witherspoon, Oscar Winner and Farmhand

When the How Do You Know star visited Chelsea Lately last night, she recalled a flight she had taken with the E! comedienne while black-out drunk before discussing her impressive menagerie of farm animals.

1. Messy Little Drummer Boys

If you thought that Jack Black and Jason Segel's "Little Drummer Boy" duet was good, check out the performance of the same winter classic that the Gulliver's Travels star did with Jimmy Fallon last night.