FIESTAR's Cao Lu revealed that she's Miao!
She was on the 'Radio Star' special that aired on the 9th, where Kyuhyun introduced her by saying, "She's the foreign member of FIESTAR, a girl group who has been out for 4 years. She's a star that won the Teen Rookie award in China's CCTV. I don't know why she's toiling in Korea... She's also Miao."
Kim Gu Ra said, "Are you the only Chinese singer active in Korea who is from the Miao tribe?", and she answered, "There are other tribes, but I think I am the only Miao. I'm the rare item."