South Korean rapper Park Jae-sang performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
Turkish fans react while South Korean rapper Park Jae-sang performs on the stage during the concert in Istanbul on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
A Turkish old man reacts while South Korean rapper Park Jae-sang performs on the stage during the concert in Istanbul on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
Turkish fans react while South Korean rapper Park Jae-sang performs on the stage during the concert in Istanbul on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)
South Korean rapper Park Jae-sang (front) performs on the stage during the concert in Istanbul, Turkey, on Feb. 22, 2013. South Korean rapper Park Jae-sang, better known as PSY, performed a concert on Friday in Istanbul's festival "Istanbul Blue Night". (Xinhua/Ma Yan)