Kid Rock is a rapper.
Robert James Ritchie ( born January 17 , 1971 ) , known professionally as Kid Rock , is an American singer , rapper , songwriter , musician , record producer , and actor . His 1998 album Devil Without a Cause sold 14 million copies worldwide . In 2010 , he released Born Free , which featured an eponymous song that became the political campaign theme of Mitt Romney , the Republican nominee for President of the United States in the 2012 election .