John Travolta was the first few to fondly remember Olivia Newton-John, his “Grease” co-star after her death on August 8. He wrote: “My dearest Olivia, you made all of our lives so much better." He added: “Your impact was incredible. I love you so much. We will see you down the road and we will all be together again. Yours from the moment I saw you and forever! Your Danny, your John!”