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.

You never know what’s going to happen on those summer nights at the Hollywood Bowl. On Friday night, the iconic venue hosted ...

Danny and Sandy finally get their movie-ending 'Grease' kiss, 40 years after it was cut Travolta wasn't the only "Grease" star who dropped in for the Hollywood Bowl showing.

John Travolta, who starred as 'Grease' bad boy heartthrob Danny Zuko, crashed the Hollywood Bowl's sing-along event Friday. He surprised the audience and "Grease" co-stars alike.

Legendary actor John Travolta recently surprised fans by dressing up as Danny Zuko from the classic 1978 film ‘Grease.’ ...

We'll tell you more, tell you more. John Travolta, who brought life to bad boy heartthrob Danny Zuko in the 1978 classic, crashed the Hollywood Bowl's sing-along event Friday.

We’ll tell you more, tell you more. John Travolta, who brought life to bad boy heartthrob Danny Zuko in the 1978 classic, crashed the Hollywood Bowl’s sing-along event Friday.