Dive In! It's a Celeb Pool Party

Join Audrina, Orlando, Lindsay and others as they dive into summer at the swimming pool. By Brian Orloff

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TAKING THE PLUNGE

24 star – and new mom – Mary Lynn Rajskub knows how to get a party started! The actress – and live-in boyfriend Matthew Rolph – beat the 90-degree heat at her June baby shower with an impromptu dip.