Christina Aguilera got to work filming her latest project “Burlesque” on location in Lake Piru, CA. The cast of the musical drama also includes Cher, Eric Dane and Julianne Hough.

Justin Timberlake was looking very serious while filming “The Social Network,” a story about the success of the social network Facebook, on location in downtown Los Angeles, CA. Uh, Justin—lose the toothpick.

Owen Wilson was hard at work on the set of  “Little Fockers” filming on location in Long Beach, CA. The film sequel also stars Ben Stiller, Robert De Niro, Teri Polo, Blythe Danner, Jessica Alba and Laura Dern.

Leonardo DiCaprio and Ellen Page were back at work this week, on location filming mystery thriller “Inception” in downtown Los Angeles, CA. This movie’s been shooting for a long time—shouldn’t they be done by now?

Jennifer Aniston was back at work on the set of “The Baster” in Los Angeles, CA on Thursday. Wasn’t this film supposed to have wrapped awhile back? Hope all this re-shooting doesn’t mean the film looks like a flop!

Lauren Bosworth looked rather glum in all black and white filming “The Hills” on location in Beverly Hills, CA. Lo celebrated her 23rd birthday on Saturday at LIV, the nightclub in Miami Beach’s Fontainbleau Resort.

Jennifer Aniston, Juliette Lewis and Jeff Goldblum were spotted on the set of “The Baster,” filming location in Los Angeles. Jen cooled off with a bottle of Smartwater, the brand she endorses. Great hair, Jennifer!

Teri Hatcher was snapped sporting an orange jumpsuit while pulling cleanup duty on the set of “Desperate Housewives,” filming on location in Los Angeles. What kind of trouble has her character “Susan” gotten into this time?

Ashlee Simpson-Wentz and a co-star got into their characters on the set of  “Melrose Place,” filming on location in Los Angeles, CA. Ashlee looked hot in her print mini-dress and high heeled ankle boots!

Katie Cassidy and Stephanie Jacobsen showed off their jogging form on the set of “Melrose Place,” filming on location in Los Angeles, CA. Too bad their fine forms aren’t drawing ratings!

Paul Bettany was snapped on location filming “Priest” in downtown Los Angeles, CA. The film is based on a comic book about a warrior priest who deserts the church to chase down killer vampires. Does that face paint ward them off?

A bathrobe-clad Ashlee Simpson-Wentz picked up her script pages for the day on the set of “Melrose Place,” filming in Los Angeles, CA.

Katie Cassidy was sprayed with fake sweat on the set of  “Melrose Place,” filming on location in Los Angeles, CA. Is it that hard to break a real sweat in the current scorching SoCal weather?

Pop group the Sugarbabes tried to keep their cool while filming a video in the blazing heat of Vasquez Rocks in Santa Clarita, CA. This is Jade Ewen’s debut in the group, as she just replaced last founding member Keisha Buchanan. Jade joins bandmates Amelle Berrabah and Heidi Range.

Brooke Burns and Shaun Sipos got busy filming “Melrose Place” on location in Los Angeles, CA. Sipos plays David Breck, son of original “Melrose” resident Dr. Michael Mancini.

Pop star Katy Perry enjoyed Sun Chips and coffee while on break from shooting her new music video “Starstrukk” at the Los Angeles County Natural History Museum’s Rose Garden in the Exposition Park area of Los Angeles, CA.

Brooke Burns was spotted filming a guest shot for the CW series “Melrose Place” on location in Los Angeles, CA. The show is not doing well in the ratings and is hoping for major help from the addition of Heather Locklear in November.

Is Joseph Gordon-Levitt working too hard? The actor had to suppress a yawn on the set of the thriller “Inception,” filming on location in downtown Los Angeles, CA.

Ellen Page and Cillian Murphy put in another day on location, filming “Inception” on the streets of downtown Los Angeles CA. The trailer for this film says that “the mind is the scene of the crime.” Sounds interesting!

Chris O’Donnell was spotted on the set of the new CBS series “NCIS: Los Angeles” in downtown Los Angeles, CA. O’Donnell and L L Cool J play buddy cops on the show.