Mnet's "M! Countdown" is back this week full of amazing performances!

For this weeks's line up, girl groups 4minute and SISTAR along with soloist Huh Gak and Seo In Guk all make their comeback performances. While SM Entertainment's latest idol group, EXO-K made their much-anticipated debut.

Other great performances from artists including Jang NaRa, Shinhwa, BaeChiGi, CNBLUE, Twilight, Busker Busker, SPICA and BTOB.

And for the highlight of the show, the rookie Busker Busker took home their very first M! Countdown trophy with "Cherry Blossom Ending".

Congratulations Busker Busker!



Seo In Guk (Comeback Stage)



Busker Busker



CNBLUE



Shinhwa



SPICA



BTOB



Jang Nara