John Travolta, who starred as 'Grease' bad boy heartthrob Danny Zuko, crashed the Hollywood Bowl's sing-along event Friday.

John Travolta pulled out the hair gel and leather to revive his role as Danny Zucco in a Hollywood Bowl screening of "Grease.

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

John Travolta, aged 71, made a surprise appearance at the Grease sing-along night at the Hollywood Bowl, stepping into the ...

John Travolta made a surprise appearance at Friday night’s “Grease” sing-a-long at the Hollywood Bowl dressed as his iconic ...

John made his first ever re-appearance in character as Danny alongside the beloved actress in December 2019, when the pair ...

The clip showed the “Pulp Fiction” alum walking out as the crowd went wild before Travolta joined his stunned “Grease” ...

Fans at the Grease Sing-A-Long screening at the Hollywood Bowl last night got a surprise when the original Danny Zuko ...

John Travolta gave "Grease" fans the thrill of their lives when he dressed up as Danny Zuko for a surprise appearance at a ...

The Hollywood Bowl’s Grease sing-a-long event was automatic, systematic, hydromatic and grease lightning — thanks to a very ...

John Travolta thrilled fans with a surprise appearance at the “Grease” Sing-A-Long at the Hollywood Bowl, dressed as his ...

John Travolta gave fans some 'chills' when he made a surprise appearance at a Grease sing-along in Los Angeles Friday night.