Star Tracks: Monday, January 31, 2011

Kardashian and Disick take their 13-month-old son Mason for stroll in L.A. Plus: Zac Efron, Matt Damon, Demi & Ashton and more
By People Staff
Updated January 28, 2011 04:30 PM

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SUNNY STROLL

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Family time! Kourtney Kardashian leads the way while Scott Disick totes 13-month-old Mason for a walk through Los Angeles on Saturday.

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FIST PUMP

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Who's the Lakers biggest fan? Zac Efron, who gives a fist-pumping show of support Sunday for the home team, who lost 109 to 96 to the Boston Celtics.

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BEANTOWN, BABY!

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Matt Damon shows his true colors – Boston all the way! – at the Staples Center Sunday, where his hometown Celtics bested the defending champion Los Angeles Lakers.

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TAKE A HIKE

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He's just too doggone cute! Jake Gyllenhaal joins a pal and his pooch, Atticus, for a hike along Mulholland Drive in Los Angeles on Saturday.

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MAN OF THE 'HOURS'

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Well-tressed star Seth Rogen presents pal (and Pineapple Express costar) James Franco with the outstanding performance of the year award for 127 Hours at the 26th annual Santa Barbara Film Festival on Saturday.

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MODEL TURN

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Ashton Kutcher and Demi Moore make a fashionable arrival at the Colcci fashion show – where the actor walked the runway! – during Sao Paolo Fashion Week on Sunday. "Loving being back in Brazil," Moore Tweeted.

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Flower Girl

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Britney Spears is escorted down the aisle of the Spanish Monastery in Miami as she fulfills her bridesmaid role at her friend and assistant Brett Miller's wedding.

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Hot to Trot

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Matthew McConaughey takes advantage of the warm weather, running along Zuma beach in Malibu.

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ON THE DOT

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One of these things is not like the other.... Oscar co-host Anne Hathaway has fun experimenting with patterns (check out those ruffled cropped pants!) at while promoting her upcoming animated flick Rio Friday in Los Angeles.

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Feel the Love

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Front and center for the Lakers game in Los Angeles, Khloe Kardashian (left) and Nicole Richie create their own picture-perfect memory!

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Platinum Blonde

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Taylor Swift and her band celebrate her #1s and her top sales at the "Heavy Metal at the Hard Rock" party in Nashville, Tenn., Friday.

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A NEW DAY

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Look who's smiling! With her treatment complete, a sunny Demi Lovato steps out Friday in Santa Monica, Calif.

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FUNNEL VISION

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Looks like the secret's out! Mom-to-be Kate Hudson shows off her growing bump Friday while out and about in Paris.

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CULTURE CLUB

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Neil Patrick Harris and partner David Burtka enjoy a night off from their newborns Thursday as they toast the opening of the Art Los Angeles Contemporary, an art fair in Santa Monica, Calif.

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MEET AND GREET

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With her Sharpie in hand, Keira Knightley greets fans outside London's Comedy Theatre on Friday following a performance of her new play, The Children's Hour.

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BERRY GOOD

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Flame-haired vixen Christina Hendricks lends her face – and famous curves! – to a sweet pop-up shop opening for chocolatier Godiva Friday in New York.

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NEW HEIGHTS

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Brooke Shields aims high during a visit to Sirius XM Radio Friday in New York, where she was promoting her limited engagement (Feb. 1 – 12) show, In My Life, at the fabled Feinstein's at Loews Regency.

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SUPPORT ACT

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Kelly Rowland takes an elegant stand (in a Nicole Miller gown) Thursday at the MTV Staying Alive bash celebrating the achievements of MTV exec Bill Roedy. "I am honored to have been a part of his celebration," the singer Tweeted after the event.

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