System of a down VS Slipknot

System of a down:




link: http://www.youtube.com/watch?v=IJmt3dr9XYQ


link: http://www.youtube.com/watch?v=CSvFpBOe8eY&ob=av2e


link: http://www.youtube.com/watch?v=zUzd9KyIDrM&ob=av2e


link: http://www.youtube.com/watch?v=5vBGOrI6yBk&ob=av2e


link: http://www.youtube.com/watch?v=JcF1oByia9M


Slipknot:




link: http://www.youtube.com/watch?v=Wws7mnMewPw&ob=av2n


link: http://www.youtube.com/watch?v=6fVE8kSM43I&feature=related


link: http://www.youtube.com/watch?v=v_09wFxoaeQ&ob=av2n


link: http://www.youtube.com/watch?v=kP5PqJpk5lQ&feature=relmfu


link: http://www.youtube.com/watch?v=B1zCN0YhW1s&ob=av2e