Billy Joel opens up about family and his music in the new HBO documentary, "Billy Joel: And So It Goes." Part I aired July 18. Part II comes July 25.

And So It Goes,” which premieres tonight, July 18, is a five-hour look at the life and career of Billy Joel. The Long Island-born Rock and Roll Hall of Famer gave a number of in-depth one-on-one interviews in the process of making the documentary series,