Access Star Sightings: Sept. 17 – 23, 2010

Friday, Sept. 17: “Twilight” hunk Kellan Lutz partying with former “The Hills” star Frankie Delgado and Ryan Cabrera at The Colony in Hollywood for a boy’s night out. Funnyman Dane Cook also at The Colony, chatting with fans and keeping the bartenders amused with his one-liners.

And in Las Vegas: Vivica A. Fox in a purple Alice & Olivia dress and purple Louboutin heels dining at TAO with a group of girlfriends.

And in Mailbu: “Furry Vengeance” star Brendan Fraser taking his parents out to dinner at Gladstone’s, and surprising fellow diners by saying no to a photo with a 6-year-old fan.

Saturday, Sept. 18, in LA: Grammy Award-winning band Phoenix celebrating their big LA show with a private after party at the Hollywood Roosevelt’s Tropicana Bar. Jared Leto and his 30 Seconds to Mars bandmates hanging out at the pool while mingling with friends. Anna Faris sipping Red Bull cocktails with a girlfriend… Nearby, Ke$ha (done up in her usual heavy costume makeup) hiding out under the radar with two guy pals… “Bacherlorette” Ali Fedotowsky and Roberto Martinez celebrating Ali’s birthday at Skybar at Mondrian with friends and fellow “Bachelor” franchise alumni — Kiptyn Locke and Tenley Molzahn.

And in Las Vegas: “California Gurl” Katy Perry celebrating her last days of being single with friend and bachelorette party planner Rihanna at the Hard Rock Hotel and Casino.

And in Petersburg, VA: Blair Underwood celebrating with family and friends at a hometown screening of NBC’s “The Event.”

Sunday, Sept. 19, in LA: “Get Him to the Greek” star Russell Brand posing for photos with a live owl at the pre-party for the premiere of “Legend of The Guardians: The Owls of Ga’Hoole” at the Grauman’s Chinese Theater… Heidi Klum playing with daughter Lou at Coldwater Canyon Park.

Monday, Sept. 20, in Brentwood: Tom Hanks and Rita Wilson enjoying a romantic dinner at Katsuya, with the youthful “Sleepless in Seattle” stars chatting energetically over albacore with crispy onions.

And in LA: “Scott Pilgrim vs. The World” star Anna Kendrick and her director, Edgar Wright, taking in a screening of the upcoming film, “The Social Network,” on the Sony lot.

And in NYC: Fran Drescher and Rosie O’Donnell attending Rosie’s Building Dreams For Kids Gala at the Marriot Marquis.

Tuesday, Sept. 21, in NYC: Shakira rocking the house at Madison Square Garden.

And in LA: A relaxed Britney Spears shopping at Westfield Topanga mall with her sons, checking out Zumiez (a snowboarding/skateboarding shop)… “Glee” cutie Mark Salling hitting up Trousdale, taking over a VIP booth and sipping cocktails with friends… John Cleese dining at Ca’ Del Sole, with a stream of people stopping by to pay homage to the “Monty Python” great.

Wednesday, Sept. 22, in NYC: Kara DioGuardi celebrating Diane’s Day at DavidBartonGym Astor Place in NYC in honor of ovarian cancer… Madonna and her daughter, Lourdes Leon, launching their Material Girl clothing line at Macy’s… Superstar singer Josh Groban attending the New York Philharmonic Opening Night Gala at Lincoln Center.

And in LA: Rihanna partying at Drai’s nightclub for her boyfriend Matt Kemp’s birthday.

Thursday, Sept. 23, in NYC: “Modern Family” siren Sofia Vergara arriving to the Ed Sullivan Theater for a “Late Show” taping… “Today” show host Hoda Kotb walking down 5th Avenue in high heels and listening to her iPod.

And in LA: Reese Witherspoon enjoying herself at the CORZO and the founders of Art Mere Art Pere’s Livestrong Foundation benefit at Smashbox Studios. “Mad Men’s” Jon Hamm and girlfriend Jennifer Westfeldt also showing their support… Snooki arriving to MyStudio nightclub close to midnight, wearing a short black dress and later sipping on Grey Goose Vodka. Usher arriving close to 1 AM, taking a table in the corner of the “Library” section with friends and drinking Malibu and mixers.