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 ...

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 the ...

The 71-year-old star stunned fans at a Grease sing-along, marking his first return as Zuko since Olivia Newton-John’s passing ...

The event started at 8 p.m. as they waited for the sun to set enough for the screening. Conn was joined on stage by three ...

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

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

“Tonight at the Hollywood Bowl, for the first time I surprised everyone at the GREASE Sing-A-Long and dressed up as Danny Zuko,” Travolta captioned his Instagram post. “No one knew.

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.

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