As a child Joe Walsh struggled to learn the guitar solo to the Beatles “And Your Bird Can Sing”. Upon meeting a Beatle years later he found out it was an overdubbed two-part solo and that he might be the only person in the world that could play both parts at once (article)

When he heard the Beatles’ “And Your Bird Can Sing,” which contains a ridiculously finger-stretching George Harrison guitar solo, Walsh worked tirelessly until he mastered it. Years later, after he became famous, Walsh met Starr (who plays on his new album) and told him the story. Starr looked at Walsh like he was nuts. Harrison had played two guitar parts separately and tracked them on top of each other in the studio.