During the last three decades of the 20th century, ASCAP's membership grew to reflect every new development in music, including the funk, punk rock, heavy metal, hip-hop, techno, and grunge music genres. Creators ranging from Lauryn Hill and Dr. Dre to the Ramones, Slayer, and John Zorn joined. ASCAP launched a Latin membership department to serve ASCAP Latin writers—Marc Anthony, Joan Sebastian, and Olga Tañon among them–with the Spanish-speaking world as their audience. In 1981, ASCAP prevailed against CBS in an eleven-year-old court case challenging the ASCAP blanket license.