Kate Winslet kept it casual while catching up with friends on the street in NYC on Thursday. She's home again after her weekend trip West for the Oscars, where she had the honor of presenting Jeff Bridges with his best actor award. She made the rounds looking stunning in her YSL gown, but Kate's next onscreen appearance will require a little less glamour. She's set to star in a Depression-era HBO miniseries called Mildred Pierce, but Kate also may throw on an apron for a rumored stint as a judge on Top Chef.

After a quick trip to London for the premiere of The Bounty Hunter, Jennifer Aniston returned to LA to the news that Heidi Montag may pop up in her next project. The Hills star shared the exciting news yesterday telling fans, "this is one of the best days of my life!!! getting ice cream to celebrate!" Heidi has been all over this week after firing Spencer Pratt as her manager and starring in a Funny or Die skit about her multiple plastic surgeries. We love seeing Jen in comedic roles but, tell us - would you be interested in seeing Jennifer Aniston in a movie with Heidi Montag?

Katherine Heigl pulled back her newly-dark locks and joined her mother for lunch in LA on Friday. It's been a big family week for Katherine, after she spent Monday doing a little shopping with her sister. Katherine has lots of downtime now that it appears as though she probably won't return to Grey's Anatomy. Her original time off for maternity leave is rumored to have been permanently extended, though details of her exit are still being worked out.

Sienna Miller left her NYC hotel solo on Friday. She and Jude Law are together in the city after a short stint in London, as he gears up to host Saturday Night Live this evening. He's on the show to promote Repo Men ahead of its release on March 19. Sienna found a time to chill with her parents while Jude was off rehearsing, though he was free enough to enjoy breakfast for two earlier this week.

It's Friday and it's time to play!

George Clooney was back to his smiley self yesterday while filming a new project, The Descendants, in Hawaii. The Oscar nominee caused a lot of headlines this week when he looked grumpy during the award show, though it turns out it was all an act he coordinated with hosts Alec Baldwin and Steve Martin. George skipped out on the star-studded afterparties, but we saw firsthand that he got the party started earlier in the evening with his own happy hour flask. There's no sign of Elisabetta Canalis in Hawaii yet but we all know how much the pair love to soak up the sunshine in sunny locales.

Beyonce Knowles was in downtown Brooklyn yesterday to see Jay-Z help break ground on the Barclays Center, which will be the future home of the Nets basketball team. It was a stop in Jay-Z's busy schedule, which included a few sold-out stadium shows last week before another in Boston last night. He and Beyonce also managed to fit in a visit to the White House. Beyonce, meanwhile, has some new work of her own - her "Telephone" video with Lady Gaga just came out, but you guys think the 10-minute runtime is a little too long.

To see more photos of Jay-Z and Beyonce in NYC, read more.