Linkin Park is a band consisting of 6 guys. The majority of their collection of songs is somewhat dark and grim. I think the genre is rap/metal is what I've heard.
Now, I've heard that most people don't like Linkin Park, but that's only because LP's style does not appeal to them. Well, to each his own, as I would say. If you don't like it, keep your mouth shut.
"Hey, did you hear "Breaking the Habit?"
"Yeah, isn't it that song about suicide?"
"Heck yeah, like it can't get any grimmer than that."