Celebrity Authentics was the exclusive autograph partner of Olivia Newton-John. Please be aware most other online autographs purported to be Ms. Newton-John's are forgeries. Ms. Newton-John only signed with Celebrity Authentics so be sure the item you choose is affixed with the Celebrity Authentics Authentication Hologram for her genuine signature.This Grease 16x24 Poster featuring the iconic image of Sandy and Danny has been personally hand-signed by Olivia Newton-John and John Travolta during their signings with Celebrity Authentics. Good girl Sandy Olsson and greaser Danny Zuko fell in love over the summer. When they unexpectedly discover they're now in the same high school, will they be able to rekindle their romance? From the most successful musical of all-time, this classic poster ships affixed with Celebrity Authentics serial-numbered and tamper evident Authentication Hologram and includes Celebrity Authentics Certificates of Authenticity featuring picture of Olivia and John signing poster. Please note: with multiples signed by the actor, a sample photo is used from stock to represent what you will receive. Exact autograph size and placement may vary.