—Lena Dunham supported boyfriend Jack Antonoff’s Ally Coalition at Audible Impact at the Grammy Museum in L.A.
—Caitlyn Jenner carried a Kenneth Cole leather drawstring bag in Malibu, Calif.
—Katherine Schwarzenegger celebrated with girlfriends at the Blushington Lookbook Launch Party in West Hollywood.
—Real Housewives of New York’s Carole Radziwill celebrated her birthday by taking in a matinee showing of Hamilton on Broadway.
—Jamie Chung celebrated her bachelorette party with 15 friends at the Hard Rock Hotel Riviera Maya in Mexico.
—Kelly Osbourne had her hair and make-up done by beGlammed before heading to the Malibu State Fair.
—Courtney Sixx celebrated her “Dirty 30″ at a gorgeous spa birthday, thrown by pal Laney Ziv with décor designed by Charles Banfield Productions and gifts by Stemulation luxury skin care and Spadaro fine fragrances, at the Four Seasons Westlake Village.
—Kelis checked out the opening night of The Taste, L.A. Times’ annual food festival, at Paramont Pictures Studios in Hollywood.
—Christina Applegate and daughter Sadie set up a lemonade stand with Cheeky tableware to benefit Feeding America.
—Kevin Hart took over the Cosmopolitan of Las Vegas for “Hartbeat Weekend,” where he hosted a comedy show at the Chelsea Ballroom and Drake’s concert at the Boulevard Pool.
–Houston Rockets’ James Harden partied with pals in a cabana at Encore Beach Club at the Wynn Las Vegas.
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