Farrokh 'Freddie' Mercury (born Bulsara; 5 September 1946 – 24 November 1991) was a British singer, songwriter and record producer, known as the lead vocalist of the rock band Queen. Although Mercury's speaking voice naturally fell in the baritone range, he delivered most songs in the tenor range.His known vocal range extended from bass low F (F2) to soprano high F (F6). He could belt up to tenor high F (F5). Spanish soprano Montserrat Caballé, with whom Mercury recorded an album, expressed her opinion that the difference between Freddie and almost all the other rock stars was that he was selling the voice. Mercury wrote numerous hits for Queen, including 'Bohemian Rhapsody', 'Killer Queen', 'Somebody to Love', 'Don't Stop Me Now', 'Crazy Little Thing Called Love', and 'We Are the Champions'.