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Credit: Michael Becker/Fox





Katy Perry got feisty with Idol judge Kara DioGuardi last night, at one point threatening to throw Coke in her face!

The two argued over contestant Chris Golightly, who sang "Stand by Me" after talking to Ryan about his tough childhood. Kara said yes, calling Golightly him "one of my favorites today, if not my favorite." She went on to say, "You're the kind of kid who has just enough talent and just enough of a story and pain and stuff that you've gone through in your life to really connect with it, and I think you're only going to get better."

But Katy, who calls herself "brutally honest" disagreed. "This is not a Lifetime movie, sweetheart," she said to DioGuardi. "You have to have talent!"

Things got even more heated when Kara decided to bust out a little "I Kissed A Girl" in front of Katy. After a few seconds, Katy interrupted, "Please stop before I throw my Coke in your face!" MEOW!

Is Katy really that catty? Or is she trying to out-Simon Simon?

"The 'American Idol' experience was awesome," she told MTV. "If I was offered that job as a permanent host, I would ditch my career and take on that career."

So maybe last night's auditions were also an audition for Katy herself!