Chicago Mayor Rahm Emanuel, right, applauds Jennifer Hudson with members of the band OK Go at the Aragon Ballroom, Wednesday, Aug. 3, 2011, in Chicago, as they greet President Barack Obama, not seen. ... more 
Chicago Mayor Rahm Emanuel, right, applauds Jennifer Hudson with members of the band OK Go at the Aragon Ballroom, Wednesday, Aug. 3, 2011, in Chicago, as they greet President Barack Obama, not seen. (AP Photo/Carolyn Kaster) less 
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Associated Press | Photo By Carolyn Kaster
Wed, Aug 3, 2011 9:44 PM EDT