FOX NEWS: Kelly Preston: John Travolta's 'Grease' co-star Olivia Newton-John says her 'heart breaks' over the loss

Kelly Preston: John Travolta's 'Grease' co-star Olivia Newton-John says her 'heart breaks' over the loss



Olivia Newton-John has reacted to the death of Kelly Preston, wife to the singer's former "Grease" co-star John Travolta.