Unlike Motown which predicated its mainstream success on the class appeal of its acts that rendered racial identity irrelevant, hip hop of 1980s, particularly hip hop that crossed over to rock-and-roll, was predicated on its (implicit but emphatic) primary identification with black identity. By the beginning of the 1980s, there were popular hip hop songs, and the celebrities of the scene, like LL Cool J, gained mainstream renown. Other performers experimented with politicized lyrics and social awareness, or fused hip hop with jazz, heavy metal, techno, funk and soul. New styles appeared in the latter part of the 1980s, like alternative hip hop and the closely related jazz rap fusion, pioneered by rappers like De La Soul.