The actor was joined by costars Barry Pearl, Michael Tucci, Kelly Ward and Didi Conn at the Hollywood Bowl ...

"Tonight at the Hollywood Bowl, for the first time I surprised everyone at the GREASE Sing-A-Long and dressed up as Danny Zuko. No one knew. Not even the cast," Travolta revealed ...

The clip showed the “Pulp Fiction” alum walking out as the crowd went wild before Travolta joined his stunned “Grease” co-stars — Barry Pearl, Michael Tucci, Kelly Ward, Didi Conn, and the film’s ...

Travolta, now 71, appeared spontaneously on stage to roaring applause at the La La Land outdoor event celebrating the 1978 ...

Not even the cast," the actor said on Instagram after the moment John Travolta surprised fans when he attended a Grease ...

John Travolta is tapping into our nostalgia. The actor, 71, made a surprise appearance at Friday’s “Grease” sing-a-long at ...