Rookie rock band group BOB4 has revealed a rock version cover of Psy's "Gangnam Style."

The group released this cover on their official Youtube channel around the end of September.

They changed the song from the original dance song into a fun live acoustic cover. Their great vocals and instrument skills gained much attention.

This video is also seen on various portal sites and Youtube.

BOB4 debuted this past June with their title song, "Mystery Girl."