Queen

Their first five albums (a perfect blend of hard rock sprinkled with glam glitter and progressive grandiosity) are, I believe, indisputable, from "News Of The World" to "The Game" being more than excellent. After that (from 1982), a simple pop with easy impact, but overall quite good (excluding "Hot Space"). Fantastic is the final epitaph of "Innuendo" (1991). Freddie Mercury is among the greatest voices in the history of rock, no question.