As David Letterman bade farewell to late-night on Wednesday, celebrities poured their hearts and humor out on social media to send off the "Late Show" host after 33 years in the biz.
Musicians shared their performances, comedians shared their stand-up bits and nearly all of them thanked Letterman for his imprint on television. Even late-night hosts Conan O'Brien and Jimmy Kimmel paid tribute to the veteran during their monologues.
Here's a look at what his fellow comedians, fans and colleagues had to say.
"Veep" star Julia Louis-Dreyfus, who helped deliver the star-studded Top Ten list, called the evening "extraordinary."