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Actor Adrian Grenier sends a special holiday greeting to his Facebook fans. Singer Beyoncé debuts her new music video. Miami Heat players pose with singer Justin Timberlake during a tour stop.

Director Peter Jackson gives ‘Hobbit’ fans a long look behind the camera. Singer Justin Bieber unveils a campaign to support relief efforts in the Philippines. Olympic diver Tom Daley asks fans for moral support after making a personal decision. And Hollywood stars honor the late Paul Walker.

NFL quarterback Tom Brady is feeling thankful in a personal video post. “Dancing with the Stars” finalists Jack Osbourne and Cheryl Burke share their excitement. Singer Miley Cyrus gears up for the American Music Awards, and fellow performer Jennifer Lopez unwinds at an after party.

U2 and the Backstreet Boys post brand-new music videos. Oprah wins the Medal of Freedom. And NBA star LeBron James shares an inspirational photo from the storm-ravaged Philippines.

Singer Mariah Carey premieres her latest single. Footballer Leo Messi posts exclusively about his hamstring injury. Actress Elizabeth Banks reads a few fan-requested, “Catching Fire” excerpts. Comedian Ricky Gervais hosts a Facebook Q&A from the set of “Derek.”

Hunger Games stars head to Facebook HQ for a Q&A with fans, and release the first ‘Catching Fire’ clip exclusively on Facebook. Britney Spears debuts her latest single. British tennis player Andy Murray gives fans a sneak peak of his new book.

Boston also dominated the conversation on Facebook, where 11 million people generated more than 32 million interactions on the social media platform during the entire 2013 World Series.

David Beckham is in the Facebook Digital Stadium for an exclusive, live interview and global book signing. Beyoncé photo-bombs one of her fans during a live performance. Actor Adrian Grenier breaks some news that excites “Entourage” fans. Rocker Steven Tyler and other celebrities honor the late Lou Reed. And actress Elizabeth Banks shows off her pumpkin carving skills.