Queen are a British rock band formed in London in 1971, originally consisting of Freddie Mercury (lead vocals, piano), Brian May (guitar, vocals), John Deacon (bass guitar, guitars, vocals), and Roger Taylor (drums, vocals). Queen's earliest works were influenced by progressive rock, but the band gradually ventured into more conventional and radio-friendly works, incorporating more diverse and innovative styles in their music.

Before joining Queen, Brian May and Roger Taylor had been playing together in a band named Smile with bassist Tim Staffell. Freddie Mercury (then known as Farrokh/Freddie Bulsara) was a fan of Smile, and encouraged them to experiment with more elaborate stage and recording techniques after Staffell's departure in 1970. Mercury himself joined the band shortly thereafter, changed the name of the band to "Queen", and adopted his familiar stage name. John Deacon was recruited prior to recording their eponymous debut album (1973). Queen enjoyed success in the UK with their debut and its follow-up, Queen II (1974), but it was the release of Sheer Heart Attack (1974) and A Night at the Opera (1975) that gained the band international success. The latter featured "Bohemian Rhapsody", which stayed at number one in the UK Singles Chart for nine weeks; it charted at number one in several other territories, and gave the band their first top ten hit on the US Billboard Hot 100. Their 1977 album, News of the World, contained two of rock's most recognisable anthems, "We Will Rock You" and "We Are the Champions". By the early 1980s, Queen were one of the biggest stadium rock bands in the world, and their performance at 1985's Live Aid is regarded as one of the greatest in rock history. In 1991, Mercury died of bronchopneumonia, a complication of AIDS, and Deacon retired in 1997. Since then, May and Taylor have infrequently performed together, including a collaboration with Paul Rodgers under the name Queen + Paul Rodgers which ended in May 2009.

Brian Harold May, CBE (born 19 July 1947) is an English musician and astrophysicist most widely known as the guitarist, songwriter and occasional singer of the rock band Queen. As a guitarist he uses his home-built guitar, "Red Special", and has composed hits such as "Tie Your Mother Down", "I Want It All", "We Will Rock You", "Fat Bottomed Girls" and "Who Wants to Live Forever".

He was made Commander of the Order of the British Empire in 2005 for "services to the music industry and his charity work". May earned a PhD in astrophysics from Imperial College in 2007 and is currently the Chancellor of Liverpool John Moores University. May currently resides in Surrey.

In 2005, a Planet Rock poll saw May voted the 7th greatest guitarist of all time. He was ranked at No. 26 on Rolling Stone magazine's list of the "100 Greatest Guitarists of All Time".

Brian May, the only child of Harold and Ruth May, was born in Hampton, London and attended Hampton Grammar School (now Hampton School). During this time he formed his first band with vocalist and bassist Tim Staffell, named Nineteen Eighty-Four after George Orwell's novel of the same name. He left Hampton Grammar School with ten GCE Ordinary Levels and three Advanced Levels in Physics, Mathematics and Applied Mathematics. He studied Mathematics and Physics at Imperial College London, graduating with B.Sc. degree with honours.

Adam Mitchel Lambert (born January 29, 1982) is an American singer-songwriter and stage actor. Born in Indianapolis but raised in San Diego, Lambert had dreamed of becoming a performer after appearing in numerous amateur productions in his childhood and adolescence. His passion overtook him when deciding to drop out of college, pursue his career, and perform in various professional theatrical productions across the world.

Lambert came to prominence following his appearance on the eighth season of American Idol. Although he was runner-up, Lambert launched a music career with the release of his debut studio album For Your Entertainment (2009) after signing with 19 in a joint venture with RCA. Debuting at number three on the Billboard 200, selling 198,000 copies in the U.S. in its first week, and reaching the top 10 in several countries worldwide, the album subsequently achieved international success with its singles "For Your Entertainment", "Whataya Want from Me" and "If I Had You". Soon after, he embarked on his first headlining worldwide concert tour, Glam Nation, making him the only American Idol contestant to do so in the year following his Idol season. The tour was followed by two live releases: an extended play entitled Acoustic Live! (2010), and a live CD/DVD Glam Nation Live (2011), which debuted at number one on the SoundScan Music Video chart. Lambert took executive producer credit and was a principal writer on his second studio album, Trespassing, which was released to critical acclaim on May 15, 2012.Trespassing made its debut in the number one spot on the Billboard 200 album chart, also topping the Billboard Digital Albums Chart and Canada's Digital Albums Chart.With this accomplishment, Lambert makes music history as the first openly gay artist to achieve the top charting position.