When David Letterman did his first show back in 1982, his first guest was Bill Murray. When he went to CBS in 1993 for The Late Show, his first guest was, once again, Bill Murray. Currently celebrating his 20th anniversary of the show being on CBS, who else would Letterman have by last night but… Liberace? No, actually it was Murray, dressed as the flamboyant pianist,and he made one of the biggest entries in show history. The actor was pushed onstage in a Rolls Royce, and exited the limo with a dog. He also unveiled a billboard, retrieved a time capsule from 1993 with the aid of a pickaxe and jackhammer, showed a clip of himself with late Chicago Cubs announcer Harry Carey, and serenaded Letterman with the #1 song from 20 years ago, a Dolly Parton song made popular by Whitney Houston. He even found some time to talk about his next several films, The Monuments Men and The Grand Budapest Hotel.