For me, my musical 'sin' would be R.Kelly (forget the molestation shit, just his music, and voice). Technically, R&B and Gospel are my 2 worst genres of music but I really like him. His Greatest hits album is really superb and I get goose bumbs in some parts.
I just bought his new disc 'happy people' yesterday and while not great, it's pretty solid. The 2nd dics is super, heavey gospel but it's actually the better disc.
BUT: let's keep the daggers away and not tear anyone apart because of their choices. It's just for a laugh; if you had told me when I was 16 that I'd like R.Kelly I would have laughed in your face (after kicking you in the nuts)...
Funny how shit comes together sometimes you dig?