The official 'Bohemian Rhapsody' music video from Queen.

Wikipedia:
Bohemian Rhapsody was written by Freddie Mercury for the band's 1975 album A Night at the Opera. The song has no chorus, instead consisting of four main parts: a ballad segment ending with a guitar solo, an operatic passage, and a hard rock section. At the time, it was the most expensive single ever made and remains one of the most elaborate recordings in popular music history.