As Spinal Tap would say, turn your speakers up to "eleven" for this straight forward audio quiz on heavy metal acts like Ozzy Osbourne, Van Halen, Scorpions, Mötley Crüe, and Judas Priest. We'll stay away from the hair bands of the late 80's like White Lion and Winger. (Disclaimer: I am not responsible for neck injuries incurred while banging your head to this quiz.)