David Letterman is a renowned American television host, comedian, and producer, best known for his late-night talk shows, particularly 'The Late Show with David Letterman'. He revolutionized the format of late-night television with his unique blend of humor, celebrity interviews, and innovative sketches. Over his career, Letterman has received numerous awards, including multiple Emmy Awards. His influence on the genre is profound, inspiring a generation of comedians and hosts, such as Jimmy Fallon and Stephen Colbert. Even after retiring from his show in 2015, Letterman's legacy continues to shape the landscape of television comedy.