Billy Joel Marries 23-Year-Old (AP) AP - Singer-songwriter Billy Joel married his fiancee, 23-year-old Kate Lee, in a ceremony Saturday at his Long Island mansion, his record label said. Joel, 55, wed Lee in a sunset wedding at his waterfront home, Newsday reported in its online editions. Columbia Records, Joel's label, announced the marriage Saturday night. A spokeswoman for Joel could not immediately be reached for comment.