Kelly Clarkson does it again! Last week, she did a cover of Nick Jonas' "Jealous" during a concert at New York's Radio City Music Hall, and this time she's taking on 'NSync. During a concert in Buffalo, NY Tuesday night, she rocked the house with a rendition of "Bye Bye Bye" which she dedicated to a fan named Alicia that rocked the house. See her performance here.

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