OLIVIA NEWTON-JOHN - Grease AUTOGRAPH Signed 8x10 Photo OLIVIA NEWTON-JOHN - Grease AUTOGRAPH Signed 8x10 Photo Authentic and Hand-Signed by Olivia Newton-John Certified Authentic with a Certificate of Authenticity Lifetime Guarantee of Authenticity COA from TopPix Autographs - UACC Registered Dealer #328 & AFTAL Approved Dealer #103