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.

John Travolta is returning to one of the biggest roles of his career. The actor and '80s icon surprised audiences at the Hollywood Bowl this past Friday, coming out dressed as Danny Zuko right ...

John Travolta is hopelessly devoted to Danny Zuko. The “Grease” star from New Jersey made an unscheduled visit Friday to a Los Angeles event dedicated to the 1978 movie. “Tonight at the ...

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

John Travolta made a surprise appearance at Friday night’s “ Grease ” sing-a-long at the Hollywood Bowl dressed as his iconic drag racing, hip swinging 1950s bad boy Danny Zuko.

Travolta is no stranger to fan sing-alongs, as in 2019, he and Newton-John dressed up as their respective characters during a “Meet n’ Grease” sing-along event in Florida.

John Travolta surprised fans at the Hollywood Bowl Grease sing-along, reprising his iconic Danny Zuko role with a stylish blond wig ...

John Travolta made a surprise appearance at Friday night’s “Grease” sing-a-long at the Hollywood Bowl dressed as his iconic drag racing, hip swinging 1950s bad boy Danny Zuko. “Tonight at ...

John Travolta talks about Howard Saint to life in The Punisher for 2004's The Punisher and what that process was like. Let me know what you all think in the comments down below, like & sub for more!!

Fans were disappointed to learn John Travolta and Stockard Channing turning down the 'Grease' reunion, but an insider claimed their reasons are valid.