A genre of music that is a blend of punk and metal. There is none of that emo crap in it. The problem is a lot of emo pussies like hardcore music. For all you emo pussies you aren't hardcore, you should listen to Death By Stereo's Emo Holocaust. Also for you emo pussies a lot of harcore is streight edge so that means no cutting you fuckin fagets.
San Francisco, LA, Massachusetts, and Germany have a lot of kick ass hardcore bands.