Watch: John Travolta's surprise Danny Zuko performance at Hollywood Bowl

It was a night to remember for Grease fans at the Hollywood Bowl as John Travolta made a surprise appearance dressed as none other than Danny Zuko!

The singalong event was to celebrate 47 years of the iconic musical, with thousands of fans gathering to relive the magic of Rydell High. But no one expected the film’s original leading man to walk out on stage.

“Tonight at the Hollywood Bowl, for the first time I surprised everyone at the GREASE Sing A Long and dressed up as Danny Zuko,” he shared on Instagram the next day, posting a video of the unforgettable moment. “No one knew. Not even the cast. Thank you for a great evening.”

Watch below:

The crowd erupted as John greeted some of his fellow cast members on stage, who also were stunned by the unexpected reunion. He then turned to the audience to make a cheeky nod to the film’s final scene.

“LA I thought you were going back to Australia?” he joked, referencing the film's iconic line. “That’s cool, that’s cool baby. You know, rocking and rolling and whatnot.”