Actor Kim Su Ro praised Psy for his global success.

Today, Kim Su Ro wrote on his twitter, "Psy is truly amazing. He is now Korea's treasure."

Kim Su Ro was referring to Psy's free concert yesterday at the Seoul City Plaza. This concert brought in around 80,000 fans.

Internet users commented, "Even Kim Su Ro is praising Psy", "Psy is really amazing" and "His free concert was really crazy."

Psy's free concert in Seoul will be aired on TV on SBS at 7 PM (KST) on October 7.