A song I've never understood

I listen to a classic -- or 'oldies' depending on your point of view -- station from Birmingham that hits the '70s, '80s era, or roughly thereabouts. They've in love with a Gary Glitter song, Rock n Roll Anthem Part 2.

What the heck is up with that song, and why would any station put it on a playlist that remotely holds itself as "classic" rock? It's annoying, drones endlessly, and wasn't he arrested in Asia for propositioning a minor? Shouldn't those three elements -- ignoring the fact that it's a shoddy representation of an instrumental -- eliminate this song from anyone's music library?

And what was that guy's real name? Was there a part 1?