"Comfortably Numb" is imho the greatest studio rock recording ever. I became a Pink Floyd fan at the release of Animals but certainly would not have had not a friend turned me on to them. They'd been around for a long time by then and I probably would've agreed with danie about not getting them. I did like a few tunes I'd heard but wasn't a fan. Same story with Led Zeppelin, except it took me much longer to like them, which I really do now. "Ten Years Gone", "What Is and What Should Never Be", and "Gallows Pole" are gorgeous. Sometimes I think we gauge an artist based on what others think the artist did well instead of finding out what else s/he has done. Sometimes this won't happen until one is living with someone who owns the stereo. For instance, most people, including rock fans, are familiar with Procol Harum's "A Whiter Shade of Pale" since it was virtually their only tune to which the public was exposed ("Conquistador", and "Homburg" - a favorite in part because my mom liked it; she was cool - were also played on Top 40 radio. Personally, I'm as sick of AWSOP as I can be). But there are a ton of incredible PH tunes to be had.
I never "got" Rap, though I've always marveled at a rapper's ability to do it; however, I really like "Ridin'" by Chamillionaire and probably would like other rap stuff were I to live with the right person.
I don't really get why zombies are the rage. Usually they're all just like the ones in Night of the Living Dead, which I honor due to them creating the icon of shambling, pale, bruised and mutilated, starving people who's great threat is that since they're already dead it's tricky how to kill them. Even when zombies are presented as runners or more like animals they're still uninteresting to me; just not scary.