I've never really been much of a Billy Idol fan (nor do I hate him) but I've always thought of him as a rock n' roll artist. Sure, some of his songs crossed over from the rock n' roll charts to the pop charts but that doesn't automatically make him a "pop singer". I'm also not sure I get the "blues based music will always overcome pop music" thing. How, exactly does that work? For example, the Rolling Stones are a blues based group but they were also pretty damn successful on the pop charts (nor is that sort of thing all inclusive to them). For those that may be unaware, Idol's roots can be traced back to the band Generation X, definitely not a "pop" act. Just because the guy got played to death on MTV and Top 40 radio doesn't make him a pop singer.