Avenged Sevenfold is unstoppable. For the second month in a row their tune "Nightmare" has come out on top to win the title of favorite rock song for August. Last month they almost tied for the win but this month the other four songs didn't stand a chance against these rebellious rockers and what is perhaps one of their biggest, if not their biggest and most loved song. Sit back and enjoy the beautifully twisted music video for 'Nightmare' once again.