In his new HBO documentary, Billy Joel addresses his feud with Elton John and talks about his career; however, it quietly ignores one major aspect of the musician's life.

There was once some “bad blood” between Elton John and Billy Joel.

Billy Joel opens up about DUI rumors, his friendship fallout with Elton John and his struggles with alcohol in the HBO documentary 'And So It Goes'

John’s full quote wasn’t exactly subtle. He blamed Joel’s alcoholism for tour cancellations, accused him of “coasting,” and described Joel’s rehab stints as “light,” quipping that when he went to rehab, he had to clean the floors, while Joel had TVs.

Joel was clearly saddened by Elton's comments and publicly reprimanded him, but revisiting the feud in a New York Times Magazine article, which was published last month, it appeared the My Life hitmaker had mellowed, stating, "He (Elton) tends to shoot off his mouth - he shoots from the hip. I think his heart is in the right place. Maybe he's trying to motivate me, to get me mad or something ...

After Elton John dissed Blly Joel in 2011, the two music icons have made up, ending their feud at the Songwriters Hall of Fame on Thursday, June 13

Elton John and Billy Joel have been at odds since a 2011 Rolling Stone interview. But it looks like the two made up at the Songwriters Hall of fame ceremony.