Spotted!

Kurt Russell and Alex Waldrop, the President of the National Thoroughbred Racing Association, attend the 2008 Breeders' Cup World Thoroughbred Championships at the Santa Anita Park in Arcadia, Calif.

Jeremy Piven, Elizabeth Moss and Mad Men’s Jon Hamm celebrating at the Bombay Sapphire Gin-sponsored Speed the Plow opening in NYC on Oct. 23rd. Additional celebs in attendance included Liev Schreiber and Ugly Betty’s Michael Urie.

Jessica Stroup sipped on cocktails from Pavé at Kitson's launch party for the 90210 clothing collection

Star Jones at Gabrielles Angel Foundation for Cancer Research event at Cipriani Wall Street in NYC.

Chuck star Zac Levi watching the Smashing Pumpkins perform at the Best Buy Guitar Hero World Tour Launch party at Best Buy in West Hollywood Oct. 25.

Luke Wilson and Bai Ling at the opening of W Scottsdale.

While husband Nick Cannon was DJing at the Blackberry party at Prive, Mariah Carey went mostly unnoticed at Miami hotspot The Florida Room at Delano.

Hosts Kate Beckinsale and Len Wiseman presenting their favorite film, All About Eve, at new American clothing brand Martin + Osas In-House Series garden screening at Hollywood's Chateau Marmont in support of FilmAid International.

Elton John joining husband David Furnish to celebrate his birthday at the Hard Rock's Pool at the Palapa hut.

Diddy grooving in the DJ booth with DJ Kiss while celebrating his cover of L'Uomo Vogue at 1Oak in NYC.

Ryan Phillipe and Breckin Meyer having cocktails and shots at Dan Tana's in L.A.

Naomi Watts at the Thompson LES in NYC.

Selena Gomez at the Comme des Garcons for H&M Collection Preview event in NYC.

Michelle Trachtenberg at the Macdella Cooper Foundation fundraiser at the New York Athletic Club.

Jessica Alba and family renting an apartment at 20 Exchange Place in NYC's Financial District.

Paula Abdul at Ra Sushi.

Karina Smirnoff at AXE PROXIMITY and 944 Magazine's Behind the UnScene, an exclusive one-night charity event at Rande Gerbers Stone Rose Lounge in Los Angeles featuring fragrance-inspired cocktails by Belvedere.