James Franco toasted Ahna O'Reilly at a dinner party held on a yacht last night in Cannes. The event, thrown by James and the Art of Elysium, honored the actress's impressive debut at the film festival. Ahna is starring in not one, but two movies being presented at the cinematic celebration. She acts alongside James in his latest passion project, As I Lay Dying, and is also in town for the premiere of Fruitvale Station, which was one of the most talked-about films at Sundance earlier this year. That project saw Ahna reunite with her The Help costar, Octavia Spencer, who stopped by the soiree last night. Guests mingled on the deck — where James and Ahna were the center of attention — over champagne and dinner as the sun set on the South of France.

James and Ahna dated for several years before parting ways in 2011, then recently reunited professionally for their latest film. Last night, they shared a hug as James arrived before catching up with the creative crowd in attendance. It was a relaxed evening for the pair, who are preparing to unveil As I Lay Dying tonight at its Cannes premiere. The movie is an adaptation of William Faulkner's most acclaimed novel and marks James' feature-length directorial debut. It's one of 17 movies from around the world in competition at the festival, which continues throughout the week.

The music industry's hottest stars got glamorous for the 2013 Billboard Music Awards blue carpet on Sunday in Las Vegas. Taylor Swift wore a short and shimmery blue number, while Miley Cyrus went bold in a black and white jumpsuit. Selena Gomez showed skin in a sexy white dress, and Hayden Panettiere donned a gorgeous black gown. Click through to see who else stepped out for the star-studded show and what they wore! Plus, be sure to vote for your favorite looks in our fashion polls.

Reese Witherspoon and ex-husband Ryan Phillippe got together on the sidelines of their son Deacon's soccer game on Saturday in LA's Brentwood District. Reese was accompanied by her husband, Jim Toth, while Ryan had his girlfriend, Paulina Slagter, by his side to cheer on Deacon. The group mingled during the match, with Reese and Paulina chatting in the grass. Reese and Ryan's two children have been bringing them together more often lately since they also reunited for their daughter Ava's track meet earlier this month.

Reese and Jim are back on the West Coast after a quick trip to NYC last week. The couple arrived in the Big Apple, where they spent quality time shopping and dining together. Reese and Jim shared a lunch date at Soho House where he drank a glass of wine while she stuck to water. Be sure to give Reese your vote in our POPSUGAR 100 bracket for a chance to win a Victoria Beckham handbag!

It was a loving weekend for Tom Brady, wife Gisele Bündchen, and kids Jack, Benjamin, and Vivian in Boston. The family fun got started yesterday when the Bündchen-Brady crew attended Tom's sister Nancy's graduation from Boston University. As well as getting in quality time with his immediate family, Tom was reunited with relatives and close friends for the special occasion where baby Vivian stole the show as she was passed around to be held. On Sunday, Tom and Gisele snuck kisses as they treated the kids to an afternoon outdoors.

Gisele and Vivian were back in Boston with their boys this weekend after a trip to NYC where they hit the pavement for a mother-daughter stroll on Thursday. While Gisele chose Vivian as her city companion for her most recent trip, she had Tom by her side for a date night at the Met Gala in NYC earlier this month.

The 2013 Billboard Music Awards rolled into Las Vegas on Sunday night taking over the MGM Grand. Stars hit the Billboards red carpet and made appearances on stage, but the real fun went on behind the scenes and in the audience. Check out celebrities and performers mingling backstage and posing for photo ops in between winning awards and grabbing the microphone. Madonna was the woman of the hour, hanging with Miley Cyrus, Ke$ha, Celine Dion, and others. Make sure to check out all the highlights from the Billboard Awards!

After her daring punk look at the Met Gala earlier this month, Madonna made another fashion statement at the Billboard Music Awards in Las Vegas on Sunday. She skipped the red carpet and made her racy debut on stage in a black fishnet dress and a fur bomber jacket. Madonna was honored with the top touring artist award, which was presented to her by Will.i.am. She shared her gratitude for her fans saying, "Thank you for supporting me for three decades. Without you I wouldn't be here."