Bohemian Rhapsody was released by Queen in 1975 as the lead single from A Night at the Opera, written by Freddie Mercury and blending ballad, opera and hard rock in a single six-minute track. Its inventive structure and theatrical vocal harmonies helped it become one of the best-selling and most-streamed rock songs of all time, later reaching new audiences through films, singalongs and short-form video. The opening remains especially popular online because it is instantly recognisable even in a few seconds.