Queen (Freddie Mercury, Brian May, Roger Taylor and John Deacon) formed in 1971 and in 1973 signed their first recording contract for EMI. That year they released their first album, Queen.
On 23rd November 1991 Freddie Mercury announced to the world that he had AIDS and the next day he died peacefully at his home, surrounded by family and friends. He remains the most high profile loss from the disease in the entertainment world and the news shocked fans throughout the world.
Info extracted from the official Queen’s website.