Jamie Kennedy, Nikki DeLoach Party at Champagne Celebration

USMagazine, Wednesday, October 5, 2011, 1:16pm (PDT)

-- Jamie Kennedy and Nikki DeLoach sipping some bubbly at the Champagne Nicolas Feuillatte's 35th Anniversary Celebration in Beverly Hills.

-- Taye Diggs and illustrator Shane W. Evans signing copies of their new children's book Chocolate Me at Books of Wonder in NYC.

-- One Tree Hill's Kate Voegele sipping on the Majorelle Blue cocktail at BlackBook's Midnight Mixologists event at MyStudio in Hollywood.

-- James Lafferty dancing the night away with friends at NYC hotspot Riff Raff's.

-- Kelly Rutherford wearing Ramy Brook at the Bergdorf Goodman 5F Flea event in NYC. 

PHOTOS: Hollywood's biggest flirts

-- Joe Jonas and Chace Crawford chatting at the CK One Shock Launch party at Gunbar in NYC.

-- Paris Hilton talking about starting a DJ career at Pacha Ibiza in Spain.

-- High School Musical's Corbin Bleu playing Star Fox 64 3D on Nintendo 3DS during a break from filming his new movie in Toronto.

-- Alexander Skarsgard drinking Apothic Red Wine at the Melancholia after party in NYC.

PHOTOS: Alexander Skarsgard's hottest moments

-- Audrina Patridge leaving Nine Zero One Salon in West Hollywood with her brightened locks and Great Lengths extensions.

-- Jake Gyllenhaal getting turned away from the Russian and Turkish Bathhouse because of a private Elit by Stoli event in NYC. 

-- Nina Dobrev kicking off Breast Cancer Awareness Month at PUMA Project Pink Day at the Puma store in NYC. 

-- Sofia Vergara and boyfriend Nick Loeb enjoying a few kisses while dining at Katsuya in Brentwood, CA.

-- Juno Temple dancing with her cast members during the Cinema Society afterparty for Weinstein Films' Dirty Girl at Jimmy at the James Hotel in NYC.

-- Katie Couric and her daughter sitting down to dinner at Orso restaurant before seeing The Mountaintop on Broadway in NYC. 

-- Jessica White and friends doing shots of Cafe Patron during a group dinner to celebrate her recent engagement at CO-OP in New York.

PHOTOS: Fall 2011 TV guide

-- Ryan Seacrest and Julianne Hough jumping onto the dance floor while DJ Bizzy spun during the after party of Craig Brewer’s Footloose at the W Los Angeles – Westwood.

-- Busy Phillips reading Miss Rumphries to children (including daughter Birdie) at the Milk + Bookies story time event with celebrity readers at Westfield shopping center in Culver City, CA.

-- Julianne Moore picking up KBL sunglasses and Isabel Marant booties on a fall shopping trip at Edit New York on NYC's Upper East Side. 

-- Alex McCord celebrating her birthday hosted by husband Simon van Kempen at NYC restaurant Mulberry Project along with friends including Real Housewives of NYC star Ramona Singer.

-- Heartland co-stars Zac Efron and Heather Graham sharing a $100,000 15L bottle of Armand de Brignac Nebuchadnezzar with a Russian billionaire at Chicago's new hotspot Board Room

-- Jason Derulo checking out the launch event for Madison Square Garden's New Signature Collection; he loved the lobster and shrimp rolls from Aquagrill.

Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly