"Late Night with David Letterman", which began in 1982, featured Paul Shaffer and The World's Most Dangerous Band, who, unlike previous house bands, incorporated contemporary rhythm and blues and rock music. The band continued that blend with Letterman when he left for CBS to start "Late Show" in 1993. House bands remain a late-night talk show fixture, with many of them also serving as unsuspecting straight men for the host's jokes, musically introducing guests, playing in and out of commercials, composing original pieces of music for sketches, and backing up musical guests.