Kristen Stewart landed at LAX today after a flight back from France. She was in Paris for Fashion Week and attended Balenciaga's runway show. Kristen sat front row with Anna Wintour and Salma Hayek, who also had husband Francois-Henri Pinault by her side — make sure to check out all the celebrities at Paris Fashion Week so far. Kristen is the face of Balenciaga's fragrance, but her visit wasn't just about work. She changed into a striped outfit for dinner at La Fidelite restaurant with friends last night.

Blake Lively had help with her umbrella as she arrived on the NYC set of Gossip Girl today. She carried a Chanel iPad case, her hat, and a cell phone in her left hand, but her wedding ring was still slightly visible on her ring finger. Blake and Ryan Reynolds tied the knot earlier this month, and after enjoying a brief honeymoon in Virginia, she got right back to work. Her castmates threw a party to celebrate the surprise nuptials, which some speculated were because Blake is pregnant, though those reports were quickly denied by Blake's rep. While Blake films the final season of her hit show, Ryan has been spotted visiting a gym near the couple's home in New York.

Jennifer Aniston was back to work on her comedy We're the Millers today in Albuquerque. The actress, sporting a bouncy ponytail and bangs, teamed up with her costars Jason Sudeikis and Emma Roberts to film a scene at the local airport, which was done up to look like nearby city Tucson's travel hub. Jennifer began filming the movie in North Carolina in July before heading to New Mexico to kick off a second round of shooting.

In between We're the Millers' location move, Jennifer also enjoyed a personal milestone, when Justin Theroux popped the question to her on his 41st birthday. Her fiancé has paid her visits on the set over the Summer, but she's also had a chance to spend some time away from work. During her downtime, Jennifer made a funny new ad for SmartWater that poked fun at pregnancy rumors and her public image. This week, she also joined a chorus of famous St. Jude's Children's Hospital supporters in a new ad for the nonprofit, which features Jennifer, Keith Urban, Ellen DeGeneres, and others belting out The Beatles' song "Hey Jude."

Malin Akerman is pregnant with her first child with husband Roberto Zincone. She and Roberto, who is the drummer for The Petalstones, have been married for five years. Malin stepped out to visit a friend after revealing the news today. Malin wore a black dress for the outing, though there was no sign of a baby bump just yet. It's been a busy year for the actress, who had Wanderlust and Rock of Ages hit theaters and stars in the TV hit Suburgatory. In addition to mom, Malin's already lining up her next roles and is connected to the big-screen adaptation of This Is Where I Leave You.

Jennifer Garner made a red-carpet appearance with the cast of Butter at the NYC premiere last night. She chose a strapless Gucci gown for the occasion, which came after attending a press conference earlier in the day. Jennifer had Ashley Greene; Olivia Wilde, in Alexander McQueen; and Ty Burrell by her side for both events. Costar Alicia Silverstone missed out on this afternoon's promotional stop but joined them for this evening's screening and later at the afterparty sponsored by Appleton Estate Rum. Jennifer, Alicia, and Olivia mingled with Harvey Weinstein at Double Seven, where they celebrated their premiere.

While Jennifer is working in NYC, her husband, Ben Affleck, is on the West Coast. He attended a charity dinner on Monday night and was spotted grabbing lunch on his motorcycle yesterday.

Gwen Stefani took a break from her London press schedule to spend time with her son Zuma Rossdale yesterday. They walked hand in hand before heading to dinner at Ozer Restaurant. Gwen sported a black silk jumpsuit and houndstooth blazer, along with a pair of studded spike booties from Giuseppe Zanotti. Gwen has been overseas with her No Doubt bandmates to promote their new album, Push and Shove. No Doubt's sixth studio album has gotten great reviews so far, and the band is headlining shows at LA's Gibson Amphitheatre this November and December, with tickets on sale today.