Late Show with David Letterman Season 6 Episode 86 Conan O'Brian, Alanis Morrisette ( Air Date 1999-01-13 ) Genre Talk, Comedy category. Overview "Tonight's ""Paul Shaffer Millennium Prediction"": health spas will not charge deposits. Upon hearing this, Dave wishes people would stop using the phrase ""happy camper."" Also, Dave goes a somewhat lengthy discourse about the Late Night show before introducing Conan O'Brien, while the latest episode of ""Next Time Bring Your Sister, You Hump"" goes on location to The Candy Store.".