Spears, 25, will not be appearing at Cyndi Lauper’s True Colors concert on Saturday after all.

Earlier this week, Spears’ choreographer, Misha Gabriel, announced that the pop tart would perform at Lauper’s show alongside musical acts like Erasure, Debbie Harry and The MisShapes.

However, a source tells Page Six, “There’s no way. Britney said she would only dance or lip-sync – and to be on stage with Cyndi, you have to actually perform. It’s not happening now.”

The news is sure to come as a blow to Rosie O’Donnell, who is scheduled to appear in the show as a special guest, and gave a special shout-out to Spears in a video posted on her blog last week.

She said, “Brit, if you’re watching, honey, you and me – we’re gonna share, like, a backstage moment, ’cause I love you, kid!”

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