9. 'Killer Queen'
The classic lineup of Queen had been together for four years by the time "Killer Queen" hit the radio in 1974, but for most rock fans it served as an introduction to the band. They couldn't have picked a better song for the task. It's a perfect showcase for Freddie Mercury's eclectic lyrics and soaring vocals as well as Brian May's virtuosic guitar playing. It reached Number 12 on the American charts, and the group was just getting started.