Billy Joel was a lifesaver for his model ex-wife Christie Brinkley when she was going through her divorce from Peter Cook - he often babysat the couple's kids.
Joel and Brinkley remained close friends after their divorce in 1994 and she admits she would have been lost without her ex, who is godfather to her two kids by Cook.
She tells the new issue of Ladies Home Journal, "Billy's great. He's godfather to Jack and Sailor, and you know there have been times when I have had to spend time with lawyers or whatever and he's babysat.
"He lives nearby, so he's like, 'Send 'em over here!'"