Whats the name of this band ?

Hi guys !

Could someone please help me figure out the name of this band ?

I think they play rock and roll type of music, or it may be some metal, its like really kewl. I saw them twice on mtv today, they got this really awesome drummers with a lot of small drums and the guitarist with the long hair and the ripped jeans. The singer is running up and down on the stage and he screams a lot.

Thanks a lot !