Queen were a hugely successful English rock band fronted by the charismatic Freddie Mercury, with Roger Taylor on drums, John Deacon on bass and Brian May on guitar. Queen were known for using a variety of musical styles throughout their songs, and it was their third and fourth albums Sheer Heart Attack and A Night at the Opera that really thrust them into the international limelight. Queen have released fifteen studio albums throughout their career and have had eighteen of their albums (studio, live and compilation) reach number one on the UK albums chart.