This summer's war among girlgroups is hot,from rookies to popular idol groups,the competition is tough in the golden era of girls.

Who's going to be crowned queen of the global music show M!Countdown?

One year after Brown Eyed Girls' hit song,"Abracadabra", Narsha is back as a solo artist with a fresh new look for "Bbi-Ri-Bop-A", sexy girl group 4Minute is ready to bring it on with their catchy new single,"I My Me Mine",and the new pop music sensation Miss A, will showcase their talents.

4Minute will be performing for the first time "Superstar" and especially on M!Countdown only,the theme song of Mnet's talent show,Superstar K. The members will unveil new looks,an unseen choregraphy and will present a powerful and passionate performance on July 22th.