FILE - In this Dec. 1, 2012 file photo, South Korean rapper PSY, who gained popularity from his famous song "Gangnam Style," gives a press conference prior to his concert at the Marina Bay Sands in Singapore. President Barack Obama still intends to attend a charity concert where PSY is scheduled to perform after reports the South Korean rapper participated in anti-American protests several years ago. (AP Photo/Wong Maye-E, File) less