Kellie Pickler is no stranger to being on TV -- but next week, she'll be acting on it for the first time!
The "American Idol" alum makes her acting debut on the CW's "90210" next Tuesday night ... but the role isn't much of a stretch.
She's playing a southern gal named Sally, who just happens to be an aspiring singer with "a great voice."
So ... how's her acting? Check out the sneak peek clip above.
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