I decided to flag banging on about the rock bands can release non rock songs scenario and focus on list

NuMbEr 1 (cool huh)

S (song) & A (artist): Bohemian Rhapsody - Queen
A (album) & D (date): Released on A Night At The Opera; 2nd December 1975
N (nationality of band): English
M (members at release): John Deacon (Bass - England); Brian May (Guitar - England); Freddie Mercury (Vocals etc - Tanzania); Roger Taylor (Drums - England)
YouTube:

My rant;

I remember my grandfather giving me the Queen: Live at Wembley '86 Album when i was a kid. I opened the cd and saw this huuuge stadium packed out and the cool cartoons of the band.

I really liked the cd, both discs, especially the bad language in Freddies speech 'we're going to be together until we fucking well die'.

But this song, blew me away. It is mental, it is brilliant on every level.
Why is it number 1? Simple, i feel that everyone in the band meant what they were doing when they recorded it, even if you and and i have no clue what he is on about. It encapsulates rock music and the guitar riff is probably the best ever.

Especially cool is the fact that it does what is does with chorus and an opera bit. Incidentally, I prefer Bill and Ted to Wayne and Garth.

So the count is:

Bands:

1 - England

Countries:

3 - England
1 - Tanzania

Decade

1 - 70's

Year

1 - 1975

Genre:
1 - Glam Rock

and the next clue is:

RoCk On