May was a co-founder of Queen with lead singer Freddie Mercury and drummer Roger Taylor, having previously performed with Taylor in the band Smile, which he had joined while he was at university. Within five years of their formation in 1970 and the recruitment of bass player John Deacon completing the lineup, Queen had become one of the biggest rock bands in the world with the success of the album A Night at the Opera and its single "Bohemian Rhapsody". From the mid-1970s until the early 1990s, Queen were an almost constant presence in the UK charts and played some of the biggest venues in the world, including giving an acclaimed performance at Live Aid in 1985. As a member of Queen, May became regarded as a virtuoso musician and he was identified with a distinctive sound created through his layered guitar work, often using a home-built electric guitar called the Red Special. May wrote numerous hits for Queen, including "We Will Rock You", "I Want It All", "Fat Bottomed Girls", "Flash", "Hammer to Fall", "Save Me", "Who Wants to Live Forever" and "The Show Must Go On".