celebrity couples

Diane Kruger, Zoe Saldana, and more starlets hit the Chateau Marmont in LA last night for a special dinner party held in honor of designer Prabal Gurung. Along with Vogue magazine and MAC Cosmetics, Prabal invited a group of famous friends to celebrate his designs. Diane Kruger bared her stomach alongside boyfriend Joshua Jackson, while Ginnifer Goodwin had her boyfriend, Josh Dallas, and their Once Upon a Time costar Jennifer Morrison for company. Prabal circulated around the event with the "wonderful as ever" Hailee Steinfeld and Star Trek Into Darkness costars Alice Eve and Zachary Quinto. Allure cover girl Zoe Saldana made a stylist appearance alongside Amber Valletta and Jaime King. Rachel Zoe, meanwhile, brought husband Rodger Berman and later tweeted that they had "such a special evening!"

Tom Sturridge and Sienna Miller got into the Costume Institute Benefit's punk theme as they hit the red carpet together at the Metropolitan Museum of Art in NYC on Monday night. Sienna covered up a white Burberry gown with a studded leather jacket by the same designer and even sported studs in her hair and on her ears. Tom, meanwhile, covered the safety-pin angle with pins holding together his shirt and adorning his hat. When she wasn't busy posing with her man, Sienna met up with model pal Cara Delevingne, who was also outfitted in Burberry. What do you think of their looks? Make sure to vote on your Met Gala fashion and beauty favorites!

Emily Blunt brought her A-game to the 2013 Met Gala in NYC tonight when she arrived wearing a Carolina Herrera gown alongside husband John Krasinski. The couple weren't in town just to attend the fashionable bash — John is currently on the East Coast promoting the final episode of The Office, which airs May 16. Emily displayed a slightly blonder 'do, which she got when she hit up a hair salon in Beverly Hills with friend Drew Barrymore last week. Don't miss out on your chance to sound off on Emily's fashion choice in our 2013 Met Gala red carpet polls.

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 got silly last night when she photobombed her boyfriend, Andrew Garfield, at the opening night party for the new play Bull in NYC. When she wasn't goofing off with Andrew, Emma chatted with the play's British stars Eleanor Matsuura and Adam James, as well as actors James Corden and Neil Stuke. The couple dropped by the premiere during a break from filming The Amazing Spider-Man 2 in the Big Apple, which they have been working on over the past month. In addition to filming her new project, Emma has been busy promoting Revlon — be sure to check out our interview with Emma Stone, where she talks about her beauty secrets!

Kate Moss was the life of the party in London last night! Along with her husband, Jamie Hince, mom Linda Moss, and friends like Stella McCartney and Rhys Ifans, Kate put on her finest '80s gear to mark the 50th birthday of their pal Fran Cutler at the Groucho Club. Fran, a PR executive, has been friends with Kate for years, and their many mutual friends helped pull off the surprise bash, which included many unique moments, from a This-Is-Your-Life-style presentation from Rhys and a set from Rita Ora.

Rita was there with her BFF Cara Delevingne. 20-year-old Cara and 22-year-old Rita's social circles have overlapped with Kate's now that Rita is romantically linked to Kate's good friend Dave Gardner, who's also close with David Beckham. Rita and Cara both dressed up for the period theme, though Kate topped them all by pulling out a second ensemble for the afterparty at The Box.

Jennifer Lopez and Casper Smart made a stylish appearance at Hakkasan Nightclub's grand opening at the MGM Grand in Las Vegas on Saturday. Jennifer stunned in a clingy little black dress while her boyfriend rocked a bright red blazer on the carpet. Inside the club, the duo mingled with Vanessa Hudgens, her boyfriend, Austin Butler, and dancer Cheryl Burke, while other celebrity attendees like Glee's Mark Salling, birthday boy Pharrell Williams, and Paris Hilton spent the night listening to Calvin Harris DJ the event.

Over the weekend, J Lo had more than just Sin City fun on her mind since her son, Max Anthony, got stitches for a minor chin injury while in LA with dad Marc Anthony. J Lo addressed the situation on the red carpet, saying, "Of course I was freaking out, but he was fine. He said it tickled." Back on the work front, J Lo is prepping to launch her next single, "Live It Up," with Pit Bull on May 8. In addition to new music, J Lo may be returning to TV after rumors surfaced earlier this month that she'll return to American Idol's judging panel as a replacement for Mariah Carey. Producers have denied the replacement assumptions, but no comments have been made regarding whether Jennifer will return to the show next season.