If you missed Joaquin Phoenix's appearance on Letterman Wednesday, you missed out. I'm sure he was putting us on, but it was awesome nonetheless:
Here's a clip of the appearance Dave was referencing when he apologized to Farrah Fawcett:
Here is the infamous Crispin Glover appearance, which is one of the strangest things ever on live TV:
Here is the infamous Madonna appearance, where she got all.
The Drew Barrymore Happy Birthday flash:
One of my favorites was the Borat appearance: