Rap was an underground phenomenon until 1980 when Sugar Hill Gang's ""Rapper's Delight"" became a top forty hit. By the end of the decade, hip hop artists like The Beastie Boys and LL Cool J were regularly invading the charts. In this episode of One Hit Wonders host William Shatner examines those hip hop wonders who won us over only once with dope rhymes and fresh beats, then passed the mic for good.