Craig T Fruchtman/FilmMagic; Arturo Holmes/WireImage Sadie Stanley recalled a sweet moment on the set ofKarate Kid: Legends, in which Jackie Chan revealed a surprising talent while serenading hundreds to boost morale while filming The actress also praised Chan's humility and confidence, despite his major accomplishments and storied career Karate Kid: Legendsalso stars Ralph Macchio, Ben Wang and Joshua Jackson; it premiered on Tuesday, May 27 Sadie Stanleyis cherishing her time working alongsideJackie Chanand was very impressed by one of his surprising talents. On Tuesday, May 27, the actress, 23, spoke to PEOPLE at the New York City premiere ofKarate Kid: Legends,which she stars in alongside Chan,Ralph Macchio, Ben Wang andJoshua Jackson. The new film marks the sixth in the franchise. Stanley's favorite moment on set came in the midst of filming the finale sequence, she says. The huge fight scene at the end was a daunting task for everyone — it took a long time to shoot and set up, and hundreds of extras were involved, so it got to be overwhelming, she says. © Columbia Pictures "We were losing morale a little bit and Jackie could sense that. And he got up on this platform, stole a mic from an AD, and started singing," Stanley shares, saying the lauded actor performed a rendition of "I Can't Help Falling in Love." "[He] basically held a concert. I will never forget that — and his voice was beautiful," she continues. "There's nothing he can't do. I'll never forget it." Stanley grew up watching theKarate Kidmovies, she says, calling them a "staple in her household." Now, she's a part of the franchise's legacy, she adds, which is an incredible experience for her. © Columbia Pictures Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. Chan had a lot of wisdom to share with her, she adds. His 64-year career appeared evident in the way he carried himself on set, Stanley says, which "was really inspiring to me." And despite his international acclaim and accomplishments, Chan is still a down-to-earth guy. "He's been doing this forever, he's a legend," Stanley says. "Everybody loves him, but he comes onto set, extremely humble, talking to everybody, making friends with the crew, just with the best attitude. And I think that's really rare to see these days, with legends like him." Read the original article onPeople