What was British rock band Queen's first hit single?

"Seven Seas of Rhye" is a song by the British rock band Queen. It was primarily written by Freddie Mercury, with Brian May contributing. The song is officially credited to Mercury only. A rudimentary instrumental version appears as the final track on the group's self-titled debut album (1973), with the final version on the follow-up "Queen II" (1974).

The completed version served as the band's third single, and after performing the song on the BBC's Top of the Pops in February 1974 it became their first hit, reaching number 10 on the UK Singles Chart. It is the earliest-released song to appear on their "Greatest Hits" album, with the exception of some versions where their first single, "Keep Yourself Alive", is included.