I don't know if this has been commented on before but for 5 consecutive albums, starting with Sheer Heart Attack, the first single from each album opens without an instrumental intro. Just vocal. Accident or on purpose?
SHA - Killer Queen
ANATO - Bohemian Rhapsody
ADATR - Somebody To Love (+ GOFLB)
NOTW - We Are The Champions (+ SYW)
Jazz - FBG/Bicycle Race (+ DSMN)
So did loads of other singles
Save Me, Play The Game, Invisible Man. A Kind Of Magic, Breakthru