The sixth song on their third album, Sheer Heart Attack, it was written by lead guitarist Brian May while he was in the hospital. In the UK, the song hit #11 on the charts when released as a single in 1975. The song has many features on it including Mercury, who hit some of the highest notes in his career. The song is also noted for its hard riff and vocal harmonies. The song remained a live favorite, performed at virtually every concert from late 1974 through 1986, often played in segments, with the ending played as a reprise. It was also featured on the 1997 compilation album Queen Rocks. In the accompanying music video, the band is seen playing at the Rainbow Theatre.