You seriously didn't just compare Ozzy to the beatles did you?
There is a massive difference there, I mean seriously.
I mean, I'm even an ozzy fan (just not his concerts in the last 20+ years), I like a ton of his music, and still play it.
But yeah, ANYONE not knowing who the beatles are is hard to believe, even like a 10 year old.
I'm be down with someone who was 30 not knowing Ozzy, or 40 or any age. Not everyone is into that kinda music, and even if you like rock/hard rock, alot of people might not have liked Ozzy (he's more metal rock).
But even if for some whacked out reason you don't like ANY of the beatles songs (I feel sorry for you), you should at least know who they are...even if your deaf........and blind....and play pinball alot.....you STILL would know them.
I mean... Black Sabbath are almost as influential of a band as The Beatles, so it's honestly a fair comparison