U.S. President Barack Obama waves on stage with Jay-Z and Bruce Springsteen at an election campaign rally in Columbus

U.S. President Barack Obama (C) waves on stage with rapper Jay-Z and musician Bruce Springsteen (R) at an election campaign rally in Columbus, Ohio, November 5, 2012, on the eve of the U.S. presidential elections. REUTERS/Jason Reed (UNITED STATES – Tags: POLITICS USA PRESIDENTIAL ELECTION ELECTIONS ENTERTAINMENT)