Star Tracks: Tuesday, December 14, 2010

01 of 16

COOL RIDER

Lights, camera, action! George Clooney goes freewheeling Tuesday, taking his motorcycle for a spin around Studio City, Calif.

02 of 16

TOP GUNS

Tom Cruise fights the cold and shows off some muscle Monday while stepping into character on the Vancouver set of Mission: Impossible – Ghost Protocol.

03 of 16

HAPPY HELLO

It's her month! After receiving her star on the Hollywood Walk of Fame, Reese Witherspoon continues her string of promotional appearances, beaming at the premiere of her latest film, How Do You Know, Monday in L.A.

04 of 16

'GOLDEN' MOMENT

Meanwhile, Katie Holmes reunites with her Romantics costar Josh Duhamel Tuesday morning as they announce the Golden Globe Award nominations live from L.A.

05 of 16

HOW FEDORA-BLE!

Double Golden Globe nominee Johnny Depp sticks by his costar Angelina Jolie during a press event for their new movie, The Tourist, Tuesday in Berlin.

06 of 16

SIGHT FOR SORE EYES

An unflappable Hugh Jackman finds strength on Oprah Winfrey's Australian stage Tuesday after injuring himself while zip-lining into the Sydney Opera House. "That was so much fun until the end," he joked.

07 of 16

STAR TREATMENT

Carey Mulligan presents her fellow countryman Colin Firth with the Variety International Star of the Year Award Monday during the Dubai International Film Festival.

08 of 16

BRAND 'CHANGE'

Michael Loccisano/Getty

The soon-to-be Mrs. Brand Katy Perry spreads some holiday cheer at the David Lynch Foundation's Change Begins Within event, which benefits trauma victims, Monday at New York's Metropolitan Museum of Art.

09 of 16

ON POINT

Will she say 'yes' to this dress? Newly-engaged Karina Smirnoff hits up a Big Apple shop – decked in bridal white! – to scope out possible dresses on Monday.

10 of 16

STARSTRUCK

Gwyneth Paltrow – who's making waves for both Country Strong and her guest appearance on Glee – is white-hot at the unveiling of her star on the Hollywood Walk of Fame on Monday.

11 of 16

NOT 'SO UNDERCOVER'

Currently under fire for her risky behavior, Miley Cyrus is snapped deep in thought Monday while filming So Undercover in New Orleans, La.

12 of 16

FASHION (SINGLE) FILE

Is Brad Goreski Jessica Alba's new stylist? The jilted Rachel Zoe protégé trails the chic star on Monday as she bounds between N.Y.C. appointments.

13 of 16

DOUBLE MEDALIST

Look who's off the chain! Diddy shows off his gold medals while heading to a taping of the Late Show with David Letterman on Monday. "Set your DVR!!" the star Tweeted.

14 of 16

TRAVELING TRIO

After partying with beau Matt Rutler, Christina Aguilera gets to work with costars Kristen Bell and Cher Monday at the U.K. premiere of their movie-musical Burlesque in London.

15 of 16

EYES WIDE SHUT

Gary Gershoff/WireImage

Russell Brand and director David Lynch find their inner om at New York's Paley Center for Media, where the two joined up on Monday to preach the benefits of Transcendental Meditation.

16 of 16

MOBILE ME!

Is that the new phone she just went shopping for? Blake Lively gets in touch with Serena on the festive New York set of Gossip Girl on Monday.