84. U.T.F.O., "Roxanne, Roxanne"
Hip-hop's first beef war started innocently enough. In 1984, Brooklyn trio U.T.F.O. released a lackluster single called "Hanging Out." Its B side, however, caused a sensation: "Roxanne, Roxanne," an irresistible jam where the peacocking guys in U.T.F.O. get repeatedly shot down by a "stuck-up" hottie. Soon the New York hip-hop market was overrun with jams like "Sparky's Turn (Roxanne You're Through)" and the unforgettable "Roxanne's a Man (The Untold Story)."