When Staffell left in 1970 to join another band, Humpy Bong, Smile effectively disbanded. Bulsara persuaded May and Taylor to continue, and at about the same time, changing his surname from Bulsara to Mercury, joined the band as lead vocalist, from which emerged "Queen". This new band tried a number of bass players during this period, namely Mike Grose, Barry Mitchell and Doug Bogie, none of whom fit with the band's chemistry. It was not until February 1971 that John Deacon completed the lineup, and they began rehearsing for their first album. This definitive lineup lasted until Mercury's death in 1991, their last album being "Made in Heaven", released posthumously in 1995.