Star Tracks: Wednesday, March 24, 2010

Someone's sleepy! Little Knox Jolie-Pitt, 20 months, gets a lift from mom Angelina Jolie in Venice on Wednesday. The family is in Italy while Jolie shoots her latest movie, The Tourist, with costar Johnny Depp.

Another day, another run with a pup! Twilight star Kellan Lutz picks up the pace on Tuesday while out in Los Angeles with dog Kola.

Home in Brazil to introduce son Benjamin to her family – and attend her twin sister's wedding – Pantene spokeswoman Gisele Bündchen makes time to promote the brand on Tuesday in the city of São Paulo.

Gwen Stefani guides her little guy Kingston, 3, into a Beverly Hills ice cream shop for a quick bite Tuesday. The duo enjoyed frozen treats with dad Gavin Rossdale and 19-month-old Zuma (not pictured).

Hey there, handsome! A dapper Jude Law perfects his signature smile while shooting a commercial in Paris on Wednesday. The actor's latest film, Repo Man, is in theaters now.

Christina Aguilera – who recently debuted artwork for her upcoming new single, "Not Myself Tonight" – shows off her lean legs while leaving L.A.'s Trousdale lounge Tuesday night.

It's a girls' night out for best buds Taylor Swift and Selena Gomez, who stay linked before going bowling Tuesday in Los Angeles.

Though he scored low on Monday's Dancing with the Stars, Buzz Aldrin looks like a winner on Tuesday outside Millions of Milkshakes in West Hollywood with wife Lois and fellow contestant Niecy Nash (not pictured).

Model Molly Sims gets a helping hand from former flame Aaron Eckhart at a launch party Tuesday for her jewelry line, Grayce by Molly Sims the Collection, at Henri Bendel in N.Y.C.

She may be taking a step back in her relationship with Reggie Bush, but Kim Kardashian is moving forward with her afternoon after lunching with sister Kourtney at Sushi Samba in Miami Tuesday.

America Ferrera is ready for battle – well, at least the publicity blitz – while promoting her animated flick How to Train Your Dragon along with Walmart Tuesday in New York.

Jennifer Love Hewitt motors ahead with her book tour, toting The Day I Shot Cupid around New York Tuesday. That morning, the actress told Today that "it takes a lot of frogs to find your prince."

Denise Richards continues her charitable ways Monday, working with the Best Friends Animal Society's "Pup My Ride" program to usher death-row dogs from Baldwin Park, Calif., to the Utah Humane Society.

Ouch! Kelly Osbourne cheerfully displays her battle wound – an elbow she broke while trying to stop her puppies from fighting – as she walks through London's Heathrow Airport Tuesday.

Mandy Moore joins hands (and forces) with some Washington, D.C., schoolchildren Tuesday to commemorate World Water Day, which raises awareness about global sanitation problems and water shortages.

Green Day's Tre Cool, Billie Joe Armstrong and Mike Dirnt take in rehearsals Tuesday as their musical, American Idiot, prepares to open in previews Wednesday at New York's St. James Theatre.