Well in my start becoming active I thought I'd share my favourite band with you guys! They are a rock band from America, not screaming but it's rock.
Single from their latest album (warning may not be suitable for under 16's - adult female in the video
) :
http://www.youtube.com/watch?v=Cx5PcB1t-s8&feature=artistob&playnext=1&list=TLfG5gHKJmID8
Thats pretty heavy so if your into the more lighter stuff :
http://www.youtube.com/watch?v=RiSfTyrvJlg&feature=artistob&playnext=1&list=TLMDb5PRhJ2gw
Single from their latest album (warning may not be suitable for under 16's - adult female in the video

http://www.youtube.com/watch?v=Cx5PcB1t-s8&feature=artistob&playnext=1&list=TLfG5gHKJmID8
Thats pretty heavy so if your into the more lighter stuff :
http://www.youtube.com/watch?v=RiSfTyrvJlg&feature=artistob&playnext=1&list=TLMDb5PRhJ2gw