This year is the 50th Anniversary of the Roy Orbison/Beatles Tour!
On this day in 1963 they played Worcester, UK. Here is a great article full of information about the Fab Four and their thoughts on The Soul of Rock & Roll –
http://www.slate.com/blogs/browbeat/2013/05/22/the_beatles_tour_with_roy_orbison_even_the_beatles_struggled_to_follow_roy.html