David Letterman Final Show: Adam Sandler Sings Goodbye Song Following 'Ridiculous Six' Walk-Off

As David Letterman's Late Show winds down and the host counts the days until his last episode – next Wednesday, May 20 – Adam Sandler dropped by CBS last night to wish him well and say goodbye in the best say he knew how: by writing the host a song. Sandler, who recently went under fire for having extras walk off the set of his new film The Ridiculous Six due to the inappropriate jokes, left the chair next to Letterman's desk during his segment and stepped center stage to perform his track –– a tribute to the one and only David Letterman.

Take a look and listen to the song below:

So, here's what we learned from Sandler's oh, so graphic tune:

- His mother really likes Letterman. Like, a lot! (We won't say the exact joke.)
- Letterman has a way with making Julia Roberts red.
- Gap-teeth and double-breasted suits are his thing.
- Letterman may urinate in Jay Leno's coffee cup should the two go out for some java. (Of course, that's all conjecture.)
- Paul Schaffer and the CBS Orchestra have a very, very difficult future ahead of them.
- Letterman paved the way for every late night show.
- Sandler considers David Letterman the King of Comedy and his "Best Friend on TV."

Which, well, makes sense. Because of that, to quote Sandler, "The whole world's gonna miss you, David Letterman."

The Late Show with David Letterman will air its final episode this coming May 20.