John Travolta Wears a Wig to Transform Back Into Danny Zuko for Surprise 'Grease' Sing-along Appearance

John Travolta Surprises ‘Grease’ Fans and Revives Danny Zuko Live in Person at Hollywood Bowl Song-a-Long

John Travolta Surprises ‘Grease’ Fans and Revives Danny Zucko Live in Person at Hollywood Bowl Song-a-Long

Sam Asghari Shares How John Travolta ‘Inspired’ Him on Movie Set