Late Night Highlights: Jerry Seinfeld Roasts Paul McCartney at the White House

Jerry Seinfeld made an appearance on The Late Show last night. Wait, it gets better: Not only did he do a little stand-up, he also discussed the time he performed at the White House for Paul McCartney. Elsewhere, Andy Richter re-auditioned to be Conan's sidekick, Christina Applegate talked about a place she likes to call "Whore Canyon," Tom Bergeron had a Dancing with the Stars nightmare and David Arquette appeared drunk and/or high on Lopez Tonight.

5. Andy Richter's Lost Audition Tape

Conan's sidekick reluctantly showed off his most recent audition tape to be Conan's second banana.

4. What Substance Is David Arquette On?

That is the question viewers were probably asking during last night's Lopez, where the actor talked about his wife Courteney Cox's alleged affair, his gay dance party in Miami and his midget friends.

3. Tom Bergeron's Late Night Acting Debut

Movieline pal and Dancing with the Stars host Tom Bergeron may have had the best line of the night when he told Jerry Springer -- who was clinging to the hood of his car during a low-speed race through Hollywood -- to "Get. Off. My. Whip." Just watch.

2. Whore Canyon

After Christina Applegate christened Conan O'Brien with a much more masculine name than Coco, the Anchorman alum talked about how early morning local news is turning into something she likes to call "Whore Canyon."

1. Hey Jerry

Jerry Seinfeld visited the Late Show to perform a little stand-up and tell David Letterman about his recent trip to the White House where he ended up singing "Hey Jude" with Paul McCartney.