John Travolta and More React to Olivia Newton-John's Death: "Made All of Our Lives So Much Better"

Channing, who starred alongside Newton-John in "Grease," released a statement to People remembering the actor. "I don't know if I've known a lovelier human being," she said on Aug. 8. "Olivia was the essence of summer — her sunniness, her warmth and her grace are what always come to mind when I think of her." She added, "I will miss her enormously."