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 made a surprise appearance at a “Grease” sing-along at the Hollywood Bowl dressed up as his beloved character, ...

John Travolta shocked fans when he stepped out as Danny Zuko in a Grease-themed event. Read all about it here.

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