Fatback is an influential American funk and disco band, active primarily from the 1970s to the mid-1980s. Known for their innovative fusion of funk, soul, and R&B, they are often credited for contributing to the development of disco and rap music. Led by drummer Bill Curtis, Fatback produced a series of groundbreaking tracks, including "King Tim III (Personality Jock)", widely considered one of the earliest rap songs. Their signature sound typically featured a robust rhythm section, lively brass arrangements, and infectious dance beats.