--Rosie O'Donnell celebrating her 50th birthday with Mike Tyson with a big party at Studio Paris in Chicago, after announcing the cancellation of her talk show

--Maria Menounos fueling up up on Muscle Milk Light before Dancing With the Stars rehearsals in L.A.

--Piper Perabo checking out the signature Lunchbox Fund crystallized Moët & Chandon bottle at the Inaugural Lunchbox Fund Bookfair Auction in NYC.

--Vampire Diaries star Kat Graham snacking on belVita Breakfast Biscuits at the Hard Rock Hotels Music Lounge at SXSW in Austin.

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--Adam Rodriguez partying with friends at The Scarlet for Susan Sarandon's fundraiser for the Holy Apostles Soup Kitchen in NYC.

--Tony Bennett hitting the courts with tennis star Novak Djokovic and singer Alejandro Sanz at his All-Star Tennis Event & Benefit Gala, benefiting Exploring the Arts and Team Bryan, in Miami.

--Gabrielle Union hydrating with an Activate water while laying by the pool at the Delano in Miami.

--Joe Jonas hanging with Kevin’s brother-in-law Mike Deleasa at Mansion in Miami well past 3 am.

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--Andrew Garfield celebrating the opening night of Death Of A Salesman with his father and girlfriend Emma Stone during the after party at Bryant Park Grill in NYC.

--The Arctic Monkeys sipping on Grey Goose cocktails at Nellcote in Chicago.

--Real Housewives of New Jersey's Jacqueline Laurita and her two sons searching for treats at the Jelly Belly Egg hunt at NYC’s Dylan’s Candy Bar.

--Ciara having lunch with friends at Wall & Water restaurant in the Andaz hotel in NYC.

--Kanye West sipping on Vida Tequila while celebrating Common’s Birthday in Park City, UT.

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--Rihanna walking down the street wearing Jennifer Fisher's XL Chain Link Ring in NYC.

--Ashlee Simpson and boyfriend Vincent Piazza buying a foot long hot dog for Ashlee's son Bronx at Serendipity 3 in NYC.

--Real Housewives of New York's LuAnn de Lesseps browsing the merchandise at an American Manhasset shopping event hosted by Denise Rich, to benefit Gabrielle’s Angel Foundation for Cancer Research, in NYC.

--Michael Douglas shopping solo at Solstice Sunglass Boutiques for four pairs of shades in the Westchester Mall in New York.

--Nikki Reed was spotted in The Girls Apparel leaving the gym in Studio City, CA.

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