Songfacts®:

• This was produced by Mark Ronson, who had DJ'd the singer's 2011 wedding to Nancy Shevell. A few months after the British producer spun the decks for another McCartney event in New York, he received a call inviting him into the studio. In total, Ronson recorded three tracks: "New," "Secret Life of a Party Girl" (which does not appear on the album), and this song, which the producer referred to an interview with MTV News as "brooding" and "quite tough."
• Ronson told Rolling Stone about collaborating with the former Beatle. "With Paul, you learn to not ask too many questions," he said. "He came in one day playing some baile funk/moombahton thing, asking, 'How do we get this energy?' Then he played me 'Climax,' by Usher."