Rick Springfield, the rock musician best known for his 1981 hit "Jessie's Girl," has garnered renewed attention for his remarkably youthful and fit appearance, particularly after a recent shirtless performance. Springfield, who is set to turn 77 on August 23, captivated fans when he removed his shirt on stage, revealing a toned physique.

During a performance while supporting Sammy Hagar's US tour, Springfield showcased his defined upper body and muscular arms. Social media users reacted with surprise and admiration, with many commenting on his apparent defiance of aging. Remarks included "Rick Springfield defies the laws of aging" and "He does look good for 77!"

Springfield has previously spoken about his dedication to maintaining his physical condition. In 2023, he stated that he works out daily and follows a pescatarian diet. He mentioned trying a vegan diet but found it left him looking "hell," opting instead to reintroduce fish for protein.

"I work out every day," Springfield told People magazine when asked about his secrets to staying "sexy" in his seventies. "I just got a trainer, and I've been working out with him. Basically, I watch what I eat, and I try and stay active."

Fans reacting to Rick Springfield's appearance.

Springfield, born Richard Lewis Springthorpe in Australia, began his music career in the 1960s and 70s, first with the pop rock group Zoot before launching a solo career. His hit "Jessie's Girl" achieved significant success in 1981.

The musician, who married Barbara Porter in 1984 and has two children, has often been the recipient of undergarments thrown by fans during concerts. He once noted a preference for this over the beer cans he experienced early in his career in Australia.

Rick Springfield in his 1980s heyday.