Billy Joel marries for the fourth time in surprise ceremony with 33-year-old pregnant girlfriend. Billy Joel, 66, and Alexis Roderick, 33, pose at the longtime couple's surprise wedding at Joel's Long Island estate on Saturday. Roderick is the pop legend's fourth wife. Billy Joel is in A New Wife State Of Mind. The pop legend got hitched for the fourth time in a surprise ceremony Saturday, his spokeswoman said.