Their 1985 Live Aid performance was voted the best live rock performance of all time in an industry poll. The band is noted for their musical diversity, multi-layered arrangements, vocal harmonies, and incorporation of audience participation into their live performances. While it is uncertain how many albums the band has sold, estimations range from 130 million to over 300 million albums worldwide. Queen were an English rock band formed in 1970 in London by guitarist Brian May, lead vocalist Freddie Mercury, and drummer Roger Taylor, with bass guitarist John Deacon completing the lineup the following year.