Group f(x)'s member Luna revealed her hidden b-boy skills.

In MBC Music "Dance Battle Korea" aired for the first time yesterday, MC Luna gave a surprise b-boy performance, shocking everyone.

'Dance Battle Korea' is a dance competiton program where the best dancers are chosen.

Internet users who saw this commented, "Luna, girl group skills", "She must've practiced a lot", "She's so good", and "I didn't know she knows how to b-boy".

Photo Credit: MBC Music