So here it goes:
This subject hasn't been so overdiscussed by the queen members, but still I could get some quotes. I've NEVER seen the word NEVER in a quote by John. Many times there are comments of "John can't sing" or "the three of us/them (Brian, Roger and Freddie)" or stuff like that, but never I've seen "John NEVER sang". He said he can't sing, but Brian can't play harp still he recorded. What I mean is that you don't have to be a singer to record some unison backing vocals. The parts I think John sang in the studio aren't complex falsettos or low bassy notes, they're just unison singing. In fact I believe in some tracks like 'Rock It' there's not only John, but also members of the studio staff (like producers, engineers, etc). Uncredited of course, just like the organ of 'Liar', the piano of 'Flash', etc
Comments against my theory are:
Brian (1997): "I don't think he's ever been nearer than a couple of a inches to a microphone and made any kind of noise what so ever". - Pretty strong, isn't it?
Roger (1997): "I'm afraid I have to admit.. I have heard him sing.. and that's why you cant find him on the records"
Brian (2002): "John is not a singer" - that doesn't mean anything. Roger is not a pianist or a bassist but he recorded synths and bass in his solo albums and some Queen songs. Ringo is not a drummer but he played drums in many records and concerts. Brian is not a kotoist or a harpist but he recorded with those instruments once in 1975.
Comments favouring my theory are:
Roger (1976): "The three of us do most of the singing" - keyword: MOST, not ALL
John (1976): "Roy Thomas Baker taught us how he recorded our vocals over fifty times" - keyword: OUR, not THEIR. Although it's possible that with "our vocals" he means "Queen vocals" and doesn't neccesarily imply that he sings
Roger (1997): "There was a lot of vocalizing from, MAINLY the three of us. John was very much in the background with that"
John (1982): "Roger, Freddie and Brian do most of the vocal harmonies. I don't participate very often. On stage I do very little backing vocals, but I can't call myself a singer" - So, he doesn't participate very often, but that's different to NEVER. Brian didn't play piano very often but that doesn't mean he never played it, does it?
For the next version of my site I'm going to specify in most cases that "all of them" sang. So, people who believes John sings can read it as "all FOUR of them". The ones who don't can read it as "all THREE of them" and we all are happy.
By the way:
> Roger could sing but was quiet
Come on! Listen to ANY queen concert and you'll note Roger sings in a lot of songs, much much more than Brian
John hated HS. Frederick's favourite singer was not PR. Roger didn't compose 'Innuendo.' Witness testimonies are often inaccurate. Scotland's not in England. 'Bo Rhap' hasn't got 180 voices.