The Chambers Brothers are an American soul and psychedelic rock band formed in the early 1960s. Known for their distinctive fusion of gospel, rock, and soul, the band consists of four brothers: George, Willie, Lester, and Joe Chambers, along with drummer Brian Keenan. They are best known for their 11-minute-long hit "Time Has Come Today", a groundbreaking and influential song in psychedelic rock. The Chambers Brothers' innovative blend of musical styles and racially diverse lineup were significant in the evolution of rock music during a period of intense social change.