N.W.A (1989)

N.W.A's 1989 dissolution sparked the most influential feud in hip-hop history. Ice Cube left over royalty disputes with manager Jerry Heller, which escalated into vicious diss tracks like "No Vaseline" that defined West Coast rivalry in the early '90s. The financial split was staggering: Cube earned only $32,000 from his first album with the group, while Heller's management took a disproportionate share—a 30% cut that dwarfed what members received. This rift outperforms #7 Destiny's Child in terms of lasting creative impact on the genre.