‘Bachelor‘ Juan Pablo Galavis serenades fans with a singing selfie. Actor Zac Efron posts an ‘Awkward‘ video with co-stars backstage at the People’s Choice Awards. Olympic skier Lindsey Vonn shares some devastating news, and what’s helping to lift her spirits. And former U.S. Representative Gabby Giffords takes a big leap for gun control, from 12,000 feet! Celebrities, athletes and other public figures are joining the conversation on Facebook. Check back here each week for a few standout posts.

Talk show host Jimmy Fallon thanking fans after hitting a Facebook milestone.

“Pretty Little Liars” star Lucy Hale thanking her fans upon receiving a People’s Choice Award for Favorite Cable TV Actress.

“That Awkward Moment” co-stars Michael B. Jordan, Zac Efron and Miles Teller thanking fans and promoting the movie.

ABC’s “The Bachelor” Juan Pablo Galavis posting this “singing selfie.”

And hosting a Q&A with fans during his visit to Facebook HQ.

Olympic downhill champion Lindsey Vonn sharing the news on Facebook that she’s bowing out of the Sochi Games due to injury.

Vonn’s new dog, Leo, lifting her spirits.

Actor Will Smith honoring the passing of his former “Fresh Prince of Bel-Air” co-star, James Avery.

Washington Redskins quarterback Robert Griffin III taking to Facebook to announce his excitement over the hiring of new head coach Jay Gruden.

Former U.S. Representative Gabby Giffords skydiving on the third anniversary of the shooting that left her critically wounded, to promote her battle for gun control.

Manchester United forward Wayne Rooney confirming that he’s taking time to recover from injury, and asking fans to help boost his team’s morale.

Actress and author Cameron Diaz promoting her new book on her Facebook Page.

Model and TV host Heidi Klum sharing this photo with her glam squad en route to the People’s Choice Awards, tagging her stylists in the picture.

Pittsburgh Steelers safety Troy Polamalu giving away gift cards to Facebook fans.

Puerto Rican rapper Daddy Yankee sharing this “Throwback Thursday” photo (he’s at the top left)

Utah Governor Gary Herbert responding to the same-sex marriage ruling in his state.

Singer Robin Thicke sharing his excitement with fans about his upcoming performance at the Grammy Awards.

By Alex Walker, Consumer Content Manager and Bree Nguyen, Strategic Partnerships Manager