{blackbabes} Caught in the Act!

• Was she buying maternity clothes? Mom-to-be Rebecca Gayheart stepped out and went shopping at Madison boutique's Melrose Avenue location in L.A. The friendly actress chatted with employees about her pregnancy and swooped up some summer must-haves, including an L Space swimsuit and Sunahara dress.

• Where's Blake? Leonardo DiCaprio added a new member to his posse – Bradley Cooper – during a night out at Beacher's Madhouse inside the Hollywood Roosevelt Hotel. The guys snuck into the club before 1 a.m. and took a seat in the front row for the vaudeville show. DiCaprio cheered for the burlesque performers and seemed more animated than usual. Grabbing Cooper's attention? The same troop of burlesque dancers.

• Also catching the Beacher's Madhouse festivities: Paris Hilton, sans new beau Todd Phillips, who hung out with sister Nicky and pal Brandon Davis. Paris danced a bit, but was also focused on her BlackBerry, while her sister was more social. At one point, Nicky went over to talk to DiCaprio and Cooper.

• Rihanna was taking it easy before her South Florida concert. The singer hung out by the pool at the Setai Hotel and Resort on South Beach, sporting a white fishnet cover-up. "She was laughing, talking with friends and listening to music," a source says.

• Eva Longoria had a full security detail in tow as she lunched at Blue Fin inside the W Hotel in New York's Times Square. The actress ate with a group and shared sushi, fries and onion rings with a female guest.