I didn't include 'authenticity' in my definition as I'm not sure what *I* mean by the word in this context, let alone what rockists make of it! I guess it would be a combination of originality and meaningfulness (ie James Bourne would write song X about fancying his teacher to overcome his childhood trauma at doing badly in Chemistry lessons, rather than writing for the Jonas Brothers to sell a bunch of albums to schoolkids who funnily enough like jumping up and down).

I think your Busted fan is probably a rockist by my definition, he's just not very good at it. If the Jonas Brothers *had* written their own stuff but still aiming at the teen girl market, I doubt our Busted fan would have had as much of a problem with them.