Jessica Simpson wants to "go after" Pamela Anderson.

The singer was branded "a bitch and whore" by Anderson after she wore a T-shirt with the slogan: "Real girls eat meat."

"She was deeply hurt and upset at the comments," a source told The Sun. "To say Jessica is mad about it is an understatement.

"She is disgusted at Pamela's remarks and fully intended to go after her, until her family made her see sense."

The source added: "Her folks told her not to make a big deal of it - as that would only get Pamela the press she's so desperate for."

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