Imagine you are twenty-seven, a global rockstar, producing hit after hit, touring all over the globe, fans love you, and then your world-famous band breaks up. What do you do? This is where Paul McCartney found himself when the Beatles began to fall apart in 1969, as John Lennon left the band. With all that fame and fortune, most would guess McCartney would spend his days after the Beatles’ breakup in some swanky hotel, living the rockstar life. Quite on the contrary, in fact