This day in history: Johnny Carson made his last TV appearance

On May 13th, 1994, beloved talk show host Johnny Carson made his last TV appearance ever on his friend David Letterman's "The Late Show." The last episode of Carson's "The Tonight Show" had aired just two years before in 1992.

Carson is considered to be one of the greatest talk show hosts of all time. He wasn't afraid to don wild costumes or do silly voices, and he could impersonate a vast array of celebrities. He also knew how to really talk to celebrities and had an uncanny ability to get them to open about about their personal lives. He was always ready with a quip to keep the conversation moving.

Carson also helped to launch the careers of many beloved comedians, who vied for a spot on "The Tonight Show" where they could appeal to Carson's vast audience. Roseanne Barr, Drew Carey, Ellen DeGeneres, Jerry Seinfeld and Jim Carrey are a few examples of comedians who got their start on "The Tonight Show."