Brian Austin Green led the way for a rumored-to-be-pregnant Megan Fox in Los Feliz yesterday. The pair grabbed a bite and stuck close upon exiting the restaurant and heading back to their car. Neither Brian nor Megan have confirmed reports of her possible pregnancy, but her publicist was quick to cut an interview short when Steve Jones brought up the subject of babies. Baby talk may be off limits, but Brian is talking about their upcoming wedding anniversary. Megan and Brian are reportedly heading back to Hawaii, where they tied the knot two years ago, for a romantic June getaway. In other news, Brian's returning to TV this Fall in TBS's The Wedding Band.

It was a big week on social media, with celebrities hanging out on set, on the beach, and at the Cannes Film Festival! Bar Refaeli gained workout inspiration from a shirtless Brad Pitt, while Rihanna had a little trouble getting out of bed the morning after the Billboard Music Awards. Heidi Klum got a lift from a few majorly buff men, and Chris Rock chilled on a balcony between promotional duties in Cannes.

Click through now to see the week's cutest celebrity candids, and don't forget to follow PopSugar on Twitter, Facebook, and Instagram!

Robert Pattinson and Kristen Stewart kissed late night yesterday in Cannes. The couple were at Le Baron's Cannes outpost celebrating the premiere of her new movie On the Road. Robert checked out the screening as well, but walked the red carpet solo. A Balenciaga-clad Kristen nonetheless had plenty of male company. She posed for pictures alongside leading men Sam Riley and Garrett Hedlund, as well as supporting actors like Rob's BFF Tom Sturridge. We caught the movie yesterday as well — make sure to check out our review of On the Road. The movie is making waves because of some surprise topless scenes from Kristen. She didn't seem too caught up in the attention last night, though, as she spent time alongside Rob. It will be Robert's turn to debut a film tomorrow, as his Cosmopolis will be screened at the Grand Palais.

Austin rolled out a Texas-sized welcome for X Factor judges Britney Spears, Simon Cowell, Demi Lovato, and L.A. Reid today. The foursome were all smiles upon their arrival and looked ready to get down to business on their first day of taping. The group of judges is back together after meeting up last week for the official unveiling of the new X Factor judging panel.

When the cameras weren't rolling, Britney had fiancé Jason Trawick by her side, but in the studio she took her seat between Simon and Demi. It looks like Brit and Simon are getting off on a playful foot since she tweeted "Simon better watch out" and joked that they were "still waiting on Simon Cowell of course" when she arrived at the event. Taping continues in Texas tomorrow before production moves on to Kansas City, San Francisco, and Providence next month.

Joseph Gordon-Levitt showed up on the Hollywood set of his latest film, Don Jon's Addiction, yesterday. He ran through a scene and showed off his bulked-up frame in a tight blue t-shirt. JGL's diving into another project while his forthcoming feature The Dark Knight Rises preps for a July 20 release. Earlier this week fans got a glimpse of a new poster showing Gotham burning to the ground around Batman. Hot superheros Christian Bale and JGL are just two of the reasons we're excited to see the final chapter in the Batman franchise, and if you're still not convinced, take a peek at the latest trailer for The Dark Knight Rises.

Nicole Kidman, Zac Efron, and Matthew McConaughey were back in the spotlight at Cannes today to premiere The Paperboy in front of a glamorous crowd. The trio was up early this morning for a photocall, where Nicole wowed in a red dress. She changed into a gorgeous Lanvin gown for this afternoon's event, which also brought out Heidi Klum in Marchesa. John Cusack and director Lee Daniels were on hand, as was Macy Gray. There are only a few days left at the Cannes Film Festival, but before things wrap up, Robert Pattinson will hit the red carpet for the second time to show off Cosmopolis.