Vance Joy (nee James Keogh) has won the 2014 International Songwriting Competition with his alt-pop hit "Riptide," and he did so in a historic way. It's the first time in the contest's 14-year history to merit perfect scores from every judge. Those judges included a number of fellow musicians, including Avicii, Bastille and Darryl "D.M.C." McDaniels of Run D.M.C.