Piano Man Billy Joel opened up about falling for his best friend's wife in a new documentary, "Billy Joel: And So It Goes," premiering July 18.

The "Piano Man" singer said he got "punched in the nose, which I deserved," after telling his best friend Jon Small that he was seeing his wife, Elizabeth Weber.

Alexa Ray Joel watched the new documentary about her father, 'Billy Joel: And So It Goes,' with mom Christie Brinkley. The film premieres in two parts on July 18 and July 25, on HBO Max.

Directors Susan Lacy and Jessica Levin join Morning Joe to discuss the new two-part HBO documentary film 'Billy Joel: And So It Goes'.

In a new, two-part documentary for HBO, Joel tells his family's Holocaust story, a part of his past he's still trying to piece together.

The original version, released in 1983, was a huge international hit, and starred supermodel Christie Brinkley - who would later become Joel’s second wife and also features in the documentary - in the video.

Plot Synopsis: There’s always a message in the music. Billy Joel: And So It Goes premieres July 18 and 25 on HBO Max. #BillyJoelHBO