Captain Beefheart is a guest on Late Night with David Letterman, 1983.brDon Van Vliet makes his first of two guest appearances on Late Night. Before hes introduced, a surprise Bob Hope Sandwich Walk-On with Late Night writer .brFrank Zappas appearance on Late Night With David Letterman promoting the London Symphony Orchestra album. Posted anywhere for the first time is the .brDr. Demento appears on Late Night with David Letterman on May 17, 1983.brBy request: In his first of five Late Night appearances, Iggy performs Eat or Be Eaten with the band and then chats with Dave for two full segments.