In my humble opinion, Freddie Mercury is/was the greatest frontman for any band, ever. I remember hearing Queen's Another One Bites The Dust on Casey Kasem's America's Top Forty; my box stereo was on the floor, in-between my bed and the wall. I would listen to Kasem doing the countdown on Sunday nights. The year this particular song made a splash in the US was probably around 1980.
Simply the greatest live Rock performance in history: Queen playing at Live Aid in 1985.
Wembley Stadium: London.