Psy’s free concert in Seoul

South Korean rapper PSY, who sings the popular “Gangnam Style,” performs during his concert in front of Seoul City Hall in Seoul, South Korea, Thursday, Oct. 4, 2012. (AP Photo/Hye Soo Nah)

South Korean rapper PSY, who sings the popular “Gangnam Style,” performs during his concert in front of Seoul City Hall in Seoul, South Korea, Thursday, Oct. 4, 2012. (AP Photo/Hye Soo Nah)

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