Star Tracks: Monday, December 6, 2010

01 of 15

KONICHIWA!

After opening up about her divorce, Christina Aguilera shows Tokyo how to Burlesque while promoting her musical film in Japan on Monday.

02 of 15

LONDON PROWL

Leaving hubby Josh Duhamel at home following his airline incident, Fergie is spotted – literally! – Saturday at the Capital Radio Jingle Ball in the 02 Arena in London.

03 of 15

ON TRACK

Jennifer Garner cheers on her littlest speed racer, 23-month-old daughter Seraphina, on Sunday while big sister – and recent birthday girl! – Violet, 5, takes in the action at a farmers' market in Brentwood, Calif.

04 of 15

MAIN SQUEEZE

Paul McCartney and Oprah Winfrey maintain a handy connection Sunday while basking in their Kennedy Center Honors during a presidential reception at the White House.

05 of 15

DO-GOODERS

Neil Patrick Harris and partner David Burtka leave their twins at home to attend Trevor Live – a LGBQT fundraiser for The Trevor Project – at the Hollywood Palladium on Sunday.

06 of 15

BUTTONED UP

John Mayer braves frigid N.Y.C. temps on Sunday while shopping with male pals CollegeHumor.com's Ricky Van Veen and Bravo's Andy Cohen in the West Village.

07 of 15

WINTER WONDERLAND

Willow Smith belts out her hit song "Whip My Hair" at the tree lighting ceremony at L.A. Live on Saturday. Off stage, her famous dad Will Smith (not pictured) sang along and clapped his hands during the performance.

08 of 15

FAMILY OUTING

Fresh off some time in Paris, Brad Pitt and Angelina Jolie arrive in N.Y.C. and take twins Knox and Vivienne to visit Lee's Art Shop in Manhattan on Saturday.

09 of 15

BELT IT OUT

It's Mariah Claus! Mommy-to-be Mariah Carey gets a jumpstart on her holidays, taping a performance for the Disney Parks Christmas Day Parade at Walt Disney World in Florida on Friday.

10 of 15

ON HOLD

Hug it out! Jake Gyllenhaal warmly greets Blue Valentine star (and former Brokeback Mountain costar) Michelle Williams at her film's L.A. screening on Thursday.

11 of 15

MARRIED CHRISTMAS

In preparation for Nicole Richie's impending nuptials, Ellen surprises the future Mrs. Madden on Thursday with flower girl and ring bearer gifts for her kids.

12 of 15

GOOD TIDINGS

Paris Hilton stocks up on holiday essentials Thursday, selecting ornaments from a festive display at Kitson in Los Angeles.

13 of 15

BACK TO THE FUTURE

Katy Perry and pal Kathy Griffin find their inner pin-up girls Thursday while rehearsing for VH1's Divas Salute the Troops in San Diego, Calif. The all-American special airs Sunday night at 9 p.m. ET on VH1.

14 of 15

FREE WHEELIN'

After paling around with his pooch, a heavily bearded Hugh Jackman goes for a pleasure cruise in his West Village neighborhood in N.Y.C. on Friday.

15 of 15

THINLY VEILED

Hopefully she didn't have to try anything on! Lady Gaga makes a dramatic exit from a Milan Chanel boutique on Friday, clad in her gothic glam best.