Star Tracks - Tuesday, July 31, 2007

01 of 14

CALLING ALL 'HEROES'

Back filming the hit NBC series, Heroes star Hayden Panettiere trades her customary cheerleading uniform for a bikini on the Malibu set of her show on Monday.

02 of 14

DYNAMIC DUO

Partners in crime Chris Tucker and Jackie Chan reunite on the red carpet for the L.A. premiere of their action film Rush Hour 3 at Grauman's Chinese Theatre Monday night. Tucker, who arrived with his mother Mary, told reporters that the film "gets better and better.

03 of 14

IT'S D-DAY

On the day her divorce from Kevin Federline is finalized, Britney Spears dons a favorite outfit – barely-there cutoffs and a see-through tank – for an L.A. coffee run with her boys Sean Preston, 22 months, and Jayden James, 10 months (not pictured), on Monday.

04 of 14

RED CARPET RUSH

Perhaps doing a little research for her upcoming role in the big-screen musical Repo! The Genetic Opera, a fashionably late Paris Hilton makes an appearance at the Rush Hour 3 premiere on Monday.

05 of 14

SPRINT TO ACTION

Taking a jog through London's Hampstead Heath, new mom Geri Halliwell looks like she's already gearing up for her upcoming Spice Girls world reunion tour, set to launch this December.

06 of 14

WALK ON BY

Already at home in London, Kirsten Dunst takes a garden-variety stroll with rocker beau Johnny Borrell through an Islington park on Monday.

07 of 14

BEST IN SHOW

Jason Lee, the voice of Underdog, and the movie's four-legged star Leo have this Hollywood collaboration down pat at the world premiere of the live-action film in New York on Monday.

08 of 14

BACK TO BERLIN

After welcoming the Beckhams to Los Angeles, Katie Holmes spends the day in Berlin – where husband Tom Cruise is filming Valkyrie – checking out the exclusive boutiques in the German capital.

09 of 14

THE TYRA TOUR

Tyra Banks takes Times Square by the (bull)horn! The talk-show host boards a double-decker bus and gives tourists an earful while taping a segment for an upcoming show in New York on Monday.

10 of 14

TRUE BLUE

Jennifer Aniston chills out on the beach during a Sunday barbecue in Malibu with a star-studded crew – including David and Courteney Cox Arquette, Sacha Baron Cohen and Isla Fisher (not pictured).

11 of 14

'HOT' SHOT

Andy Samberg gets the audience charged up while visiting MTV's TRL in New York's Times Square on Monday. The actor chatted about his infamous D--- in a Box video (which is up for an Emmy Award) and his new film Hot Rod.

Get a first look at Samberg's new film here.

12 of 14

'WHO'S' THAT GIRL?

Australian pop star Kylie Minogue steps out in costume on the set of a Doctor Who Christmas special in Swansea, Wales, where she filmed scenes for a guest appearance on the BBC TV series on Monday.

13 of 14

ON THE FLY

Gwen Stefani continues her Sweet Escape Down Under! The pop star, who is currently touring in Australia, arrives at the Sydney airport with husband Gavin Rossdale (not pictured) and son Kingston, 14 months, on Sunday.

14 of 14

WITH THE CREW

Musician Darryl McDaniels gets chummy with Entourage stars Jeremy Piven and Rex Lee at a private screening party for the hit HBO show at the Polaroid Beach House in Malibu on Sunday.