Paul McCartney releases his first rock album in six years today (Tuesday) when New hits stores and digital retailers.

The album contains 13 tracks, one of which, “Scared,” is hidden. McCartney has been working on it for the past few years and ended up using four producers –- Giles Martin, son of Beatles producer George Martin; Ethan Johns, son of producer Glyn Johns; Paul Epworth, who has worked with Adele and others; and Mark Ronson, stepson of Foreigner guitarist Mick Jones. He tells us, “I was really looking for one producer, seeing if I got on with them, but I fell in love with all of them.”