FILE - In this Nov. 4, 2012 file photo, Stevie Wonder performs at a campaign event for President Barack Obama at the Fifth Third Arena on the University of Cincinnati campus in Cincinnati. Wonder is not excited about the use of Lil Wayne's vulgar lyrics that reference Emmett Till, a black teen who was killed in 1955 for allegedly whistling at a white woman. The R&B legend says the rapper's disturbing verse should not have made it beyond the recording studio for the world to hear.(AP Photo/Carolyn Kaster)
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