John Travolta's Danny Zuko reemerged at the Hollywood Bowl, 47 years after the star portrayed the Rydell High T-Bird in 'Grease' the movie.

Grease star John Travolta shocked fans by strolling out dressed as Danny Zuko at a sing-a-long event for the hit 1978 film in Los Angeles. The 71-year-old actor starred as the charismatic T-Bird opposite Olivia Newton-John as angelic Sandy Olson in the hit musical.

John Travolta SURPRISES ‘Grease’ Sing-Along as Danny Zuko! John Travolta wowed the crowd at the Hollywood Bowl in Los Angeles on Friday, making a surprise appearance ahead of a sing-along with some of his 'Grease' co-stars.