The directors of "Billy Joel: And So It Goes" recently opened up about the making of the new HBO documentary and provided an update on the legendary singer’s health.

Billy Joel, 76, who boasts 33 top 40 hits and five Grammy Awards, has had an expansive and exciting life, which comes into focus in a new documentary, And So It Goes.

From childhood struggles to iconic chart-toppers, the film explores the moments that shaped Billy Joel’s life — and the music that defined generations.