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