Singer Lee Hyori danced to "Gangnam Style."

Lee Hyori made a surprise visit on the camping site for XTM's "Adrenaline" on Tuesday. Lee Chun Hee asked Jung Gyu Woon to dance to "Gangnam Style."

Lee Hyori known for her sexy moves started to dance to the music saying "How do you dance the horse dance?" She also said "I'll see if you can be a dance singer" to Jung Gyu Woon.

Jung Gyu Woon started dancing and showed outstanding skills. Lee Hyori responded saying "You have a good body and good dance skills."

"Adrenaline" is gaining popularity by four guys going to different camping sites every week.