Ryan Gosling Surprises Eva Mendes on Her Birthday on Fallon

Ryan Gosling surprised his longtime partner Eva Mendes with a heartfelt birthday celebration on Thursday night during his appearance on The Tonight Show Starring Jimmy Fallon in New York, marking the couple's first official joint public outing in more than a decade.

Gosling, 45, was on the NBC late-night program to promote his upcoming film Project Hail Mary, in which he portrays a middle school science teacher who awakens aboard a spaceship with amnesia. To tie into the movie's theme, the studio audience consisted entirely of teachers, a detail Gosling highlighted while discussing Mendes' admiration for educators. "You have no idea how much she loves teachers," he told host Jimmy Fallon. "She has her hall monitor sash still from when she was a kid. She hangs it proudly in the house."

It was Mendes' 52nd birthday, and Gosling revealed she was watching from backstage. He asked the crowd if they would sing "Happy Birthday" if he brought her out, prompting enthusiastic cheers. A producer then escorted Mendes onstage, where Gosling greeted her warmly, holding her hand as they faced the audience. Looking surprised but delighted, Mendes wore a striped cardigan, wide-legged jeans and a...