Sam Kinison First Appearance on Letterman

Samuel "Sam" Burl Kinison (December 8, 1953 – April 10, 1992) was an American stand-up comedian and actor. Kinison was famous for his extremely raunchy humor and amazingly wild, colorful outfits. A former revival-style preacher, his standup routines were most often characterized by intense, angry ranting and punctuated by his trademark scream. Kinison was voted #20 in Comedy Central's 100 Greatest
Stand-ups of All Time.

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Bill Hicks - One Night Stand (1990)