Queen are an English rock band formed in 1970 in London by guitarist Brian May, singer Freddie Mercury and drummer Roger Taylor, with bassist John Deacon joining the following year. Queen rose to prominence during the 1970s and are one of Britain's most successful bands of the past three decades. The band is noted for its musical diversity, multi-layered arrangements, vocal harmonies and incorporation of audience participation into their live performances. Their 1985 Live Aid performance was voted the best live music performance of all time in a BBC poll.