Paul McCartney is currently on the road, touring North America through mid-August with a show called One on One. The song selection, a deep dive into the ex-Beatle's entire catalog, is a dream come true for Macca die-hards and a perfect onstage complement to Pure McCartney, a recently released compilation that surveys the singer-songwriter's work with Wings, the Fireman and under his own name. We spoke with McCartney about the vintage classics and recent favorites that make up his One on One set.