Sly and the Family Stone was an American band from San Francisco. Active from 1967 to 1983, the band was pivotal in the development of funk, soul, rock, and psychedelic music. The group's core line-up was led by singer-songwriter, producer, and multi-instrumentalist Sly Stone, and featured Stone's brother and singer/guitarist Freddie Stone, sister and singer/keyboardist Rose Stone, trumpeter Cynthia Robinson, drummer Gregg Errico, saxophonist Jerry Martini, and bassist Larry Graham. Formed in 1967, the group's music synthesized a variety of disparate musical genres to help pioneer the emerging "psychedelic soul" sound. The work of Sly and the Family Stone greatly influenced the sound of subsequent American pop, soul, R&B, funk, and hip hop music.