Saturday night, actress Didi Conn, who played Frenchie in the hit movie Grease, reunited with Olivia Newton-John on stage during her show at Flamingo Las Vegas, where together they sang “Summer Nights” (Photo credit: Dave Becker / WireImage).

Photo credit: Dave Becker / WireImage.
Slipping back into a Pink Ladies jacket, Didi delighted the audience and brought them to their feet in a rousing standing ovation. Immediately following the show, Didi went backstage to visit and take photos with Olivia.

Photo credit: Dave Becker / WireImage.