As has been previously reported, McCartney worked on the album with four decidedly modern producers: Mark Ronson, Adele hitmaker Paul Epworth, Ethan Johns (son of legendary producer Glyn), and Giles Martin, son of "fifth Beatle" and producer George Martin. McCartney said that he originally planned to spend time with each of them in the studio and then decide who he wanted to hire for the album. But as he said, "I got along with them all! I couldn't choose, I had so much fun with each one!"

Calling from a "holiday" with his family (including his children and grandchildren), McCartney noted that his next stop is tour rehearsals with his long-time backing band, to learn his New songs. "I'm excited to hear how they sound live. There's a few that I've got my eye on that are made to go live!"