"I sold my house to Jerry Seinfeld"

This quote by Billy Joel is most likely describing the reality that he sold his home to the popular comedian Jerry Seinfeld. It could be interpreted as an indication of adoration for Seinfeld, as Joel is likely aware of his success and fame. It might likewise be interpreted as a sign of regard for Seinfeld's wealth and success, as Joel wants to part with his own house in order to make a deal with him. It could also be interpreted as an indication of friendship in between the 2, as Joel wants to make a deal with Seinfeld despite the reality that he is a celeb. Lastly, it might be interpreted as an indication of Joel's rely on Seinfeld, as he is willing to part with his own house in order to negotiate with him.