Queen defied convention in the most audacious ways imaginable. The Brits were one of the biggest acts of the '70s, thanks to their mash-up of metallic guitar crunch and art-pop flair topped off with Freddie Mercury's operatic shrieks, cries, and pleas. It's an aesthetic that was crowned in 1975 by the ingeniously constructed micro-symphony “Bohemian Rhapsody.” With a voracious appetite for new sounds, Queen would go on to ingest nearly every pop trend under the sun: Strutting disco beats, robotic synth-pop, and retro-rockabilly all found their way into their fabulously indelible style.