The bass player with the British rock group, The Who, John Entwistle, has died in Las Vegas on the eve of a North American tour by the band. He was 57.
The cause of death has not yet been established; but a possible heart attack has not been ruled out.
With Entwistle's death, only two original members of The Who remain: singer Roger Daltrey and guitarist/songwriter Pete Townshend.
The original drummer Keith Moon died in 1978.