Madonna booed after endorsing Barack Obama at concert Madonna performs live at The NIA in Birmingham on July 19, 2012. NEW ORLEANS, Oct. 29 (UPI) -- The crowd at Madonna's weekend concert in New Orleans jeered the pop star as she urged audience members to re-elect President Barack Obama, E! "Who's registered to vote?" she asked concertgoers during Saturday night's show. I don't care who you vote for as long as you vote for Obama. The remark prompted boos from her fans to which she responded: "Seriously, I don't care who you vote for. ... Do not take this privilege for granted. Go vote.