Mnet's 'M! Countdown' is back for its weekly show featuring performances by your favorite artists!

On this episode, LUNAFLY made a comeback with "Special Guy", Lyn returned with "Miss You... Crying", and Girls' Generation came back with "Mr.Mr".

As for the winners, the first place nominees were Girls' Generation and CNBLUE, but in the end,Girls' Generation won this episode with "Mr.Mr"! Congratulations!

Other performers of the night were GOT7, Nell, TVXQ, Ladies' Code, Melody Day, Park Ji Yoon,BTS, BESTie, BTOB, Sunmi, Soyu & JungGiGo, CNBLUE, 1PS, and The One.

Check out the performances below! [Videos will be updated as they become available.

Winner:

COMBACK: Girl's Generation