Access Star Sightings: January 22 – 28, 2010

Friday, January 22 in Las Vegas: “Jersey Shore” stars DJ Pauly D and The Situation celebrating the show’s finale at JET Nightclub at the Mirage… Lauren Conrad celebrating her upcoming 24th birthday at The Bank Nightclub at the Bellagio.

And in Park City, Utah: Robert Redford and America Ferrera separately enjoying lunch at the T-Mobile myTouch Diner at the Village at the Yard.

Saturday, January 23, in Park City, Utah: Josh Radnor, Kristen Stewart, Malin Akerman, Jon Hamm, James Franco, Melissa Leo, Michael Chiklis and Phillip Seymour Hoffman all spotted leaving the Variety Studio at Village at the Lift at the Sundance Film Festival.

And in West Hollywood: Nicole Richie dancing at Tom Whitman’s Cherry Pop party at Ultra Suede for the second Saturday in a row in a private booth with her gays – no Joel Madden, Harlow or Sparrow in sight… Taye Diggs celebrating his 39th birthday at Skybar at the Mondrian with wife Idina Menzel and friends including Cuba Gooding Jr., who was also celebrating his birthday there.

And in Las Vegas: Katy Perry hosting a “Waking Up In Vegas” party at Haze at ARIA Resort & Casino at CityCenter, with Mickey Rourke in the audience.

Sunday, January 24 in Park City, Utah: Marisa Tomei at the Bing House for the after party of her new film, “Cyrus,” at the Sundance Film Festival… Juliette Lewis hanging out at Bar Binoche… “Howl” stars Todd Rotondi and Jon Prescott joining filmmakers from “8: The Mormon Proposition” at the Outfest Queer Brunch, along with GLAAD Executive Director Jarrett Barrios.

And in West Hollywood: Maulik Pancholy (Jack Donaghy’s assistant on “30 Rock”) eating at Hugo’s.

Tuesday, January 26, in Park City, Utah: Elijah Wood attending the Humane Society of the United States’ Art & Soul Center to support rescuing animals.

And in LA: Rocker Ryan Adams walking out of Groundworks Coffee on Sunset in the late afternoon.

Thursday, January 28, in Las Vegas: Jamie Kennedy hosting the fourth annual TAO A GO GO contest at TAO, with girlfriend Jennifer Love Hewitt dancing for the crowd… Backstreet Boys singer Nick Carter and girlfriend Lauren Kitt, also at TAO, celebrating his 30th birthday.

And in LA: “The Biggest Loser” host Alison Sweeney with her two kids waiting for her car at the valet outside Katsuya in Hollywood… Will.i.am also grabbing an early dinner at the restaurant… “True Blood’s” Ryan Kwanten wearing a sharp light grey Calvin Klein suit holding court downstairs with co-star Sam Trammell at the Calvin Klein party on Melrose Avenue across from the PDC… also in attendance downstairs were Chris Klein, Jared Leto, Nicky Hilton, Matt Bomer and Kate Bosworth, while up on the roof, stars spotted included Penelope Cruz, Nicole Scherzinger, Kellan Lutz and Ali Larter, among others… nearby, singer Taylor Dayne catching the premiere of promoter Tom Whitman’s new Thursday “Sanctuary” party at the Abbey.