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Vice President Joe Biden's wife will make a cameo in Season 4 of Army Wives, Lifetime announced on Tuesday.

Dr. Jill Biden will play herself in an episode aimed at raising awareness of the efforts of military families. Some real Army wives will be featured

It will air Sunday, Aug. 15 at 10/9c.

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"We are honored to have Dr. Biden make a special appearance on Army Wives," said Nancy Dubuc, president of Lifetime Networks. "Dr. Biden's inspiring commitment to military families should be commended."

Biden, 59, will also film a PSA in support of military families that will air during the episode.