Katie Holmes was back on the Melbourne set of Don't Be Afraid of the Dark earlier today. It was the end of a busy work week for the actress, but she didn't seem be minding the long hours as she laughed with a costar between takes. Her husband Tom, meanwhile, left Australia after recently taking a cruise with their mutual friend James Packer. He's back in LA, where he grabbed dinner at Cut last night. Tom also checked out a Beyonce show at the Staples Center earlier this week. He was apparently spotted rocking out to "Single Ladies," despite his favorite concert buddy being Down Under.

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Lindsay Lohan met Samantha for lunch yesterday before they spent their evening at the American Idol concert. She was back at Sam's house early this morning, though it looked like she had a little trouble getting inside. LL's face has been popping up all over the place lately with her new Vogue España cover and her newest Fornarina ads. She'll also be on the small screen in Labor Pains this Sunday, when we'll finally get to see her fake pregnancy in action.

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Robert Pattinson changed into a different shirt on Friday after a day of filming Remember Me in NYC.

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Orlando Bloom arrived in LA yesterday after learning that his West Coast home had been burglarized. The thieves reportedly made off with around $500,000 worth of jewelry, but Orlando still cracked a big smile as he peered out his car window. Seems like the actor has his priorities in order and knows what's important in life — he even told photographers that the news was "not a story" and that people are "suffering a lot worse" all over the world.

David Beckham left his New Jersey hotel on Friday morning.

Reese Witherspoon had her BlackBerry in hand while running errands in LA yesterday. She looked perfectly summery in her white sundress, and as the season continues, so does our bikini bracket. Reese has made it all the way to the third round, but she's currently behind Jennifer Aniston by a significant margin — so make sure to get your votes in if you want Reese to stick around!

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Zac Efron stayed warm in his wetsuit while taking scuba diving lessons in Vancouver yesterday. He's been spending a lot of time on boats lately, although the water in Canada can be even colder than down in LA. The actor is in town to film his new movie, The Death and Life of Charlie St. Cloud, and it looks like he's picking up a few new skills along the way.

Josh Hartnett chilled with his girlfriend after lunch in NYC on Thursday.