When Paul McCartney performed in Lubbock, Texas on October 2, 2014, The Buddy Holly Educational Foundation were allowed backstage to present Paul with two replica "That'll be the day" Buddy Holly guitars. He signed one of the guitars and it is on display. The other guitar he kept for his collection, although he has yet to use it in concert.
Interesting tidbit of from the top photo---Paul watched Family Fued with Steve Harvey when he is backstage?