The Isley Brothers are an American musical group originally from Cincinnati, Ohio, that started as a vocal trio consisting of brothers O'Kelly Isley Jr., Rudolph Isley and Ronald Isley in the 1950s. With a career spanning over eight decades, the group has enjoyed one of the "longest, most influential, and most diverse careers in the pantheon of popular music". Together with a fourth brother, Vernon, the group performed gospel music until Vernon's death a few years after its formation.