Naomi Watts Photo by: Ed Isabella / Splash News
Caught in the Act! | Denise Richards, Naomi Watts
Naomi Watts, keeping her baby bump warm in a bulky down coat and scarf while toting a shopping bag in New York City.

Leonardo DiCaprio, sharing breakfast with his grandmother at seafood restaurant Gladstone's in Malibu. The Oscar-nominated star was quite the model grandson, clutching his grandma's arm to help her as the two left the restaurant. Awww.

Christina Aguilera, celebrating at L.A.'s Hyde Lounge after her sold-out show at L.A.'s Staples Center. The pop diva partied with husband Jordan Bratman and an entourage of 30, including members of the Pussycat Dolls. After pouring a dozen glasses of Taittinger champagne for her guests, Aguilera made a toast to her fellow revelers. Earlier at the concert, Dancing with the Stars judge Carrie Ann Inaba sang along and danced to "Ain't No Other Man."

Adrian Grenier, loading coffee into his Volkswagen Jetta at a Starbucks in Hollywood. The Entourage star ordered so much java that he needed assistance from an employee to bring it to his car.

Orso Photo by: Bauer-Griffin
Caught in the Act! | Denise Richards
Lindsay Lohan, dining with deejay pal Samantha Ronson and another female friend at L.A. eatery Orso. The trio nibbled on cold poached salmon and asparagus with basil sauce on the outdoor patio. Later, the actress headed to West Hollywood lounge Winston's, where she sipped bottled water and spent the evening laughing and emailing on her BlackBerry.

• By JENNIFER GARCIA and PRIYA MOHAN

Tuesday's Caught in the Act! >
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