John Travolta honors his "Grease" co-star Olivia Newton-John with a heartfelt tribute following the news of her death on Aug. 8. Full Story: https://www.eonline.com/news/1341238/john-travolta-shares-heartbreaking-tribute-to-grease-co-star-olivia-newton-john #JohnTravolta #OliviaNewtonJohn #ENews Subscribe: http://bit.ly/enewssub About E! News: The E! News team brings you … [Read more...]