Popsugar Celebrity Reunions John Travolta and Olivia Newton-John at G’Day Black Tie Gala We Are Hopelessly Devoted to John Travolta and Olivia Newton-John's Incredible Grease Reunion 31 January 2018 by Kelsie Gibson View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Previous Next Start Slideshow ReunionsNostalgiaGreaseOlivia Newton JohnJohn Travolta