-- Denise Richards enjoying Activate Water at Alice + Olivia's Memorial Day party at the Malibu Lumber Yard.
-- Paula Abdul posing with a Dyson Orange Ball vacuum at the Lupus L.A. Orange Ball.
-- Heidi Klum enjoying drinks at the de Grisogono Glam Extravaganza Event in Cannes.
-- Melanie Fiona licking her fingers after indulging in the Sweet & Smokin' BBQ Ruffles Ultimate chips at the Maxim Hot 100 party in NYC.
PHOTOS: See Denise Richards' life as a mom
-- Estelle hanging at the Chandon Launch event for the Limited Edition Summer bottle at the Standard Biergarten in NYC.
-- Christina Milian supporting Monster Energy's Music Saves Lives at St. Felix Restaurant in Hollywood.
-- Aubrey O'Day picking up some Koma Unwind at a convenience store in NYC.
-- Adrienne Bailon celebrating her sister’s birthday with dinner and dancing at Bishops & Barons in NYC.
PHOTOS: See what your favorite celebs are doing this summer
-- Katharine McPhee and husband Nick Cokas shopping for summer clothes at Blue & Cream in NYC.
-- Gabrielle Union enjoying ESPA spa treatments at Acqualina Resort & Spa in North Miami Beach.
-- Katie Couric and daughter Carrie Monahan burning calories at Flywheel East Hampton at Dylan Lauren's charity ride to benefit the MCSPCA.
-- Miley Cyrus and her mom Tish getting mani-pedis at Townhouse Spa in NYC.
PHOTOS: See the stars and their moms
-- Bachelor couple Jesse and Ann Csincsak taking a safety training course from the Wyatt family – Rich, Renee, Kurt and Paige - of Discovery Channel’s hit show American Guns in Castle Rock, Colorado.
-- Katy Perry wearing a floppy hat while making a late night stop to listen to DJ Chris Lake at South Pointe in Southhampton, NY.
-- Scott Disick drinking Bud Lights with friends while celebrating his birthday at FLUXX nightclub in San Francisco.
-- Andrew Watt performing at a party for his new music video by Mick Rock with Scott Lipps, stylist Lauren Rae Levy and ICM agent Zach Iser at Electric Room in NYC.
-- Nick Loeb chatting with Hamptons Magazine editor Samantha Yanks during a stop on his boys weekend at the Southhampton Social Club in NY.
This article originally appeared on Usmagazine.com: Denise Richards Hydrates at Memorial Day Party
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