Star Tracks - Friday, October 12, 2007

Even an oversized pair of sunglasses can't disguise the ever-chic Rihanna. The singer checks out of her New York hotel on Thursday en route to the Nokia Theater in Times Square, where she performed with signer Kat DeLuna.

Lindsay Lohan continues to get out and about after leaving Cirque Lodge treatment center on Oct. 5. On Thursday, the actress and Riley Giley, whom she met in rehab, shopped on Main Street in Park City, Utah, before going for a caffeine boost at Starbucks.

Jim Carrey stays close to girlfriend Jenny McCarthy, who hosted a cocktail party for the UCLA Early Childhood Partial Hospitalization Program in Pacific Palisades, Calif. on Thursday. The program helps children with autism – a condition that affects her 5-year-old son, Evan.

Eva Mendes cuts a chic and slim silhouette – in her Temperley gown – at a party for Gotham magazine on Thursday at New York's Buddha Bar. Her secret to staying so svelte: "I just cut out everything white," Mendes told PEOPLE. "I’m talking about white food like breads and anything with white flour and starch."

Back on the field after a sidelining injury this summer and a family emergency earlier this month, David Beckham gets his kicks while training with his team, the L.A. Galaxy, on their home turf on Thursday.

Prince Harry studies up at a reception for MapAction, a charity that provides information to disaster relief agencies, on Thursday in London. A patron of the organization, the Prince has announced that he would like to train with the group and gain the skills needed to visit disaster sights.

Rosario Dawson cannot contain her enthusiasm after being honored with the vision award at Thursday's Hispanic Heritage Awards in Washington, D.C. for her work with VotoLatino, an organization that seeks to increase voter turnout among young Hispanics.

From primetime to daytime! Enrique Iglesias, who just completed a guest arc on How I Met Your Mother, makes hearts melt as he performs his song, "Somebody's Me," during a taping of aThe Young and The Restless at CBS studios in Los Angeles on Thursday. The episode will air on Wednesday, Nov. 7.

Britney Spears, who recently reconciled with her mother, keeps her hands full on Wednesday, as she leaves her Malibu home to reportedly spend the night with her brother Bryan. The following day, the pop star attended a custody hearing and a judge granted her weekly overnight visits with children.

In London with sister Ashley to launch a new clothing line, Mary-Kate Olsen shows off her own passion for fashion at the Christie's and Vanity Fair Post-War and Contemporary Art Party on Wednesday.

Supermodel Heidi Klum and husband Seal, who revealed that he and his wife will sing a duet on his upcoming album, find quality time together with a Starbucks run on Thursday in Beverly Hills.

After a dip in the ocean and handling a drippy ice cream cone, Hilary Duff is back to normal working conditions on the New Jersey set of her upcoming film, Greta, on Thursday.

Continuing with their brotherly bond, Ben and Casey Affleck share the spotlight, this time at the Chicago premiere of Gone Baby Gone Wednesday night.

After snagging three American Music Award nominations, a turbaned Beyoncé makes a quick exit Wednesday night, after a late dinner at the Waverly Inn in New York.

After attending super secret divorce proceedings with ex Heather Mills, Paul McCartney runs into Gwyneth Paltrow at a gallery opening for furniture company Established amp Sons in London on Thursday.