Last week, reports surfaced that the singer has been offered a part on the upcoming CW spin-off.
But when asked by Usmagazine.com about the possible gig Monday at a junket for her action film War, Inc., she said, "No, it's not true."
The show has landed another famous face, though.
Full House alum Lori Loughlin has signed on, a CW rep announced Monday.
She's been cast as Celia Mills, a former Olympic medalist and mother to central teens Annie and Dixon.
According to the Hollywood Reporter, writer Rob Thomas has also been looking to potentially recruit Jennie Garth to reprise her role as Kelly Taylor.
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