Jaime Pressly Jaime Pressly

Jaime Pressly is about to brush up on her Rules of Engagement.

The Emmy winner will guest-star on an upcoming episode of the CBS comedy, TVGuide.com has confirmed. Pressly, 32, will play a possible surrogate mother for Jeff and Audrey (Patrick Warburton and Megyn Price).

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Executive producer Tom Hertz spoke about the former My Name is Earl star's cameo to People, which first reported her casting. "We are thrilled to have Jaime ... She is hilarious in this role and she's made a great adjustment from Jason Lee's mustache to David Spade's," he said.

No air date has been announced for the episode. Rules of Engagement is scheduled to return for its fourth season sometime early next year.