Smile was a fan of Mercury, who urged them to try out more extravagant staging and recording approaches. He became a member in 1970 and offered the moniker "Queen." Deacon was hired in March 1971, before the band's self-titled debut album was released in 1973. Queen's second album, Queen II, debuted at number one in the United Kingdom in 1974. It has been certified triple platinum by the BPI for sales exceeding 3 million copies. Mercury died of AIDS-related pneumonia on November 24, 1991. The group continues to tour worldwide.