Glenn Hughes (sometimes known as The Voice of Rock) is an English rock bassist and vocalist, best known for playing bass and performing vocals for funk rock pioneers Trapeze, the Mk. III and IV line-ups of Deep Purple, as well as briefly fronting Black Sabbath in the mid-1980s. Hughes has carved a distinctive vocal style blending the finest elements of hard rock, soul and funk. That astonishing voice is Hughes' calling card. He's known as a singer's singer: in fact, Stevie Wonder once called Hughes his favorite white singer.