Star Tracks - December 7, 2006

Spokesmodel Mischa Barton makes her mark at the unveiling of Keds' spring 2007 collection at Bungalow 8 in New York on Wednesday. The custom-made logo dress, which was worn by Barton for the company's upcoming ad campaign, will go up for auction Dec. 11 on eBay to benefit Sharon Stone's Planet Hope charity.

Shakira shows how to handle a hot mic Wednesday during the first of a three-night engagement in Miami for her Oral Fixation tour. The Colombian-born singer, who will also be filming a concert DVD in Florida on Saturday, was just nominated for a Grammy – for Best Pop Collaboration with Vocals for "Hips Don't Lie."

Newlyweds Katie Holmes and Tom Cruise reunite with some of their wedding guests – Victoria Beckham, Jennifer Lopez and Marc Anthony – over dinner at Wolfgang Puck's Cut restaurant in Beverly Hills on Wednesday. The Cruises are expected to continue celebrating this weekend with a post-wedding party for pals who couldn't make it to their lavish Italian wedding.

Leonardo DiCaprio emerges into the spotlight to attend the Hollywood premiere of his drama Blood Diamond on Wednesday. The actor recently confessed that the only person he'd ever purchase diamonds for would be Mom.

With Lost on hiatus until February, the island's resident doctor Matthew Fox turns up Wednesday in Toronto as a guest on MuchMusic's MuchOnDemand show, where he promoted his latest film We Are Marshall, due out on Dec. 22.

Mark Wahlberg gives a young friend the VIP treatment during a day of bonding at the Old Navy store at L.A.'s Beverly Connection on Wednesday. The Departed star made the holiday season brighter by helping 100 Boys and Girls Club members shop.

For Demi, perhaps? Ashton Kutcher kicks off his holiday shopping with a trip to Barneys in Los Angeles on Wednesday.

Mandy Moore has a jolly good time with Santa at the re-opening of the Cartier store at the Mall at Short Hills in Short Hills, N.J., on Wednesday.

Jiminy Glick (a.k.a. Martin Short) shows celebrity guest Jon Stewart all the right moves during the most popular segment of the stage actor's Broadway show, Fame Becomes Me, on Wednesday.

Drew Barrymore and Hugh Grant have a good time collaborating on the New York set of their film Music and Lyrics on Wednesday.

Unlike her fashion-challenged TV alter ego, Ugly Betty star America Ferrera is the picture of chic in her little black dress Tuesday night at a special presentation of the She Made It: Women Creating Television and Radio exhibit at the Museum of Television and Radio in Beverly Hills.

Wilmer Valderrama hits all the right notes during a trip to New York's FAO Schwarz on Wednesday. The actor, who stars in the upcoming comedy Unaccompanied Minors, took two children from the Little Flower Children and Family Services to the toy emporium for a shopping spree.

The Hoff is coming! David Hasselhoff gets into character as he rehearses Wednesday in New York for his debut in The Producers. The actor will portray flamboyant director Roger DeBris in the Mel Brooks musical, which opens in Las Vegas on January 31.

Bobby star Joshua Jackson and actress friend Diane Kruger make it a pas de deux during a Parisian stroll on Tuesday.

Talk-show host Rachael Ray shows us what she thinks of trading places with Oscar the Grouch during a visit to Sesame Street on Wednesday.