The Muffs' lone Sub Pop single captures the group at its fiercest, with an aggressive, punky guitar riff that perfectly complements Kim Shattuck's unguarded lyrics and primal-scream vocals -- though on paper its themes of unrequited love suggest girl group classics of a bygone era. In practice, "I Need You" is pure catharsis, ripped clean of even the merest fraction of demure, doe-eyed romanticism. The flip side's cover of the Zeros' "Beat Your Heart Out" retains the tuff-grrrl snarl of "I Need You," but adds a healthy dollop of the bubblegum-punk infectiousness that defines the Muffs' later work.