'D-cup' girl group Swing Girls have finally released their debut single (and corresponding MV) on August 19th, and it's already climbed quite high on the charts! As of the 19th, the group's title track "Run X3" secured #6 in ranking on major live music charts. Bugs Music in particular saw the girls edge out senior artists Kim Tae Woo and Rain while maintaining their positions in the top 10 on Melon and Olleh Music. It's difficult for even senior artists to land in the top 10 upon release, so the girls are definitely off to a positive start with their debut. One industry representative commented, "Their record is surprising, especially since they're a rookie girl group who has yet to even start music program promotions.� It seems their addictive song and sexy concept is working with the male fanbase." As previously reported, the girls boast an average height of 170 cm and 'D-cup' chests; they also possess a slew of beauty experience like participating in Miss Korea pageants. Their name is a combination of the letter 'S' in 'S-line' and the word 'Wings', which expresses their desire to become the wings of the Korean music industry. Check out their MV below! Source + Photos: JoongAng via Nate