KELLY Clarkson is starting to take this whole "rock star" thing a little too seriously. The "American Idol" winner showed up the other night at Hollywood’s Key Club for the Metal Skool concert and got "wasted," our spywitness reports. Clarkson climbed onstage with Metal Skool and Ryan Key of the band Yellowcard, toting a bottle of liquor and "ended up tearing off her vest and throwing it into the crowd before playing a lot of air guitar."
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You always knew this girl was a wild child waiting to be let out!
