Olivia Wilde

It would be an exciting week for casting even if the Cannes Film Festival weren't going on, but the glamorous event in France is bringing a ton of new casting deals as well. The lead for YA tearjerker The Fault in Our Stars cast its Augustus Waters, and Zac Efron just got a new speed-demon role. Click through to see these and the new jobs for everyone from Shia LaBeouf and Christoph Waltz to Cate Blanchett and Scarlett Johansson.

Summer is right around the bend, which (among many things) means it's time to pack away your thick, chunky sweaters in lieu of light, airier pieces. But before you flip your closet, feast your eyes on the stars who have already started showing off their warm-weather style. There was Olivia Wilde, who was effortless in breezy orange pants, and Zoe Saldana, who looked sweet in a dusty rose Dolce & Gabbana top. On a more casual note, Julianne Hough made a serious case for the little denim dress. For even more inspiration, head inside to see all the celebrities showing off their spotlight-worthy style.

The fun wasn't over for the Met Gala 2013 attendees in NYC last night as they flocked to the Standard Hotel following the ball for the official afterparty at the Boom Boom Room. Madonna stripped out of her bum-baring Met Gala outfit and changed into a fishnet body stocking and black lacy lingerie to mingle with guests like Katy Perry, Allison Williams, and Frank Ocean. She wasn't the only star who made a costume change — Amanda Seyfried took off her gown and changed into a baggy black t-shirt to hit the dance floor with Frank. Meanwhile, Miranda Kerr met up with January Jones, Jennifer Lawrence arrived with Marion Cotillard, Gerard Butler mingled with Karolina Kurkova, andNicole Richie connected with Kirsten Dunst, and Mary-Kate Olsen snuggled with boyfriend Olivier Sarkozy. Mary-Kate and Olivier weren't the only couple at the late-night bash, as Jennifer Morrison was spotted holding hands with her Once Upon a Time costar Sebastian Stan and Kate Bosworth hugged Michael Polish. If you missed out on all the excitement last night, be sure to check out our collection of all the red carpet fashion from the 2013 Met Gala to get caught up!

Justin Timberlake welcomed his celebrity pals to a special show at NYC's Roseland Ballroom last night. The performance, which was organized to celebrate his new deal with MasterCard and billed as one of the credit card's "Priceless" events, brought out JT's SNL pals Andy Samberg and Jason Sudeikis. Justin's wife, Jessica Biel, was also in the wings cheering on her husband. Andy and Jason had their ladies too — they brought their respective fiancées, Joanna Newsom and Olivia Wilde. Also out for the performance were Julianne Hough, Uma Thurman, and Brooke Shields.

The Cinco de Mayo show gave Justin a chance to perform music from his latest album, The 20/20 Experience, which he recently announced will be followed up by The 20/20 Experience Part 2 in September. He sang plenty of his old songs too, from "Like I Love You" to "Cry Me a River" and "Senorita." Justin joked with the crowd, with quips like, "You're at an eight and a half. If you be honest with me, I'll be honest with you." He also asked, "Is anybody drunk yet?" After hearing some cheers, he added, "Good for you!" His frequent collaborator Timbaland emerged toward the end for a rendition of "SexyBack." It seems Justin had as great a time as the fans. He tweeted last night, "Thank you NYC and Roseland Ballroom! Had so much fun tonight. Lets do it again soon."

Emma Stone and Olivia Wilde met up in NYC today for Revlon's annual EIF Run/Walk For Women. The duo, who are ambassadors for the brand, hosted the event, which helps raise money for research, treatment, and support for medically underserved women with cancer. Olivia urged fans to join them for the cause on Twitter yesterday, writing, "Emma Stone and I need you to come hang out with us tomorrow: Saturday. In NYC. Don't stand us up!"

Emma shared her beauty tips during last week's launch of Revlon's new Lash Potion Mascara in the Big Apple. When she's not working with the beauty brand, Emma's been spending time with boyfriend Andrew Garfield, and the couple attended the opening-night party for the new play Bull on Thursday. He joined her again for the race today and brought along a service dog that they walked with while showing PDA for each other.

The 2013 Tribeca Film Festival has officially come to a close, and the annual event brought many of Hollywood's biggest stars to the Big Apple. Over the weekend, Julianne Moore got dressed up in purple for a screening of The English Teacher, while Justin Long kicked back with a Heineken at the afterparty for Single Shot. Kate Hudson stunned in a white Jenny Packham dress to attend the premiere of her film The Reluctant Fundamentalist with her director, Mira Nair, and costar Kiefer Sutherland last week, and pregnant trio Busy Philipps, Kat Coiro, and Evan Rachel Wood compared bumps at the Case of You premiere last weekend.

That's a wrap on this year's Tribeca Film Festival — click through now to see all the star-studded fun!

After last night's White House Correspondents' Dinner, Vanity Fair hosted its annual postparty with Editor in Chief Graydon Carter greeting the many celebrity guests. Nicole Kidman mingled with other actors including Jeremy Renner, Paul Rudd, and Nashville leading ladies Connie Britton and Hayden Panettiere. Despite being dubbed the "nerd prom," the many actresses in DC last night were dressed to the nines in their best gowns — check out who wore what on the White House Correspondents' Dinner red carpet.

The Vanity Fair bash, cohosted by Bloomberg, also brought out celebrity couples — Jason Sudeikis stuck close to fiancée Olivia Wilde, Sofía Vergara mingled with her own spouse-to-be, Nick Loeb, and Bradley Cooper brought his young model love, Suki Waterhouse. Jason made sure to say hi to his fellow SNL buddies from the past and present, including Fred Armisen and Amy Poehler. Sofía, meanwhile, hung out with pal Katy Perry.

The Tribeca Film Festival continues its stylish reign in New York City, thanks to the latest batch of red carpet screenings and cocktail parties. The annual Vanity Fair-hosted kickoff party set the bar high, but this week's latest premieres and movie screenings certainly added to the list of enviable outfits spotted on the fest circuit. On the heels of Kate Hudson's body-conscious Jenny Packham sheath at the premiere of The Reluctant Fundamentalist, Taraji P. Henson continued the red carpet glamour in a formfitting blue sheer number at the Chanel dinner last night. Of course, this is just the beginning; we'll let you click on to see who wore what to the most recent TFF festivities.

— Additional reporting by Chi Diem Chau and Melody Nazarian

A "very tiny elephant" in the room is how Katy Perry described her divorce from Russell Brand recently. Almost a year since they officially split, the pop star seems more comfortable talking about it, and she's not the only star. Last year, Olivia Wilde opened up about her 2011 divorce to documentary filmmaker Tao Ruspoli, explaining, "I felt like my vagina died. Turned off. Lights out . . . And you can lie to your relatives at Christmas dinner and tell them everything on the home front is just peachy. But you cannot lie to your vagina."

Experiencing the end of a marriage is a difficult and emotional affair, so we're saddened to hear about divorces, whether it's a friend or a celebrity going through one. Many of the famous women involved have bravely spoken out in TV and magazine interviews about their experiences. If you're going through a divorce or know someone who is, be inspired by these honest quotes from celebrity women on their splits.