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

On this week's episode, Cosmic Girls' Seola debuted solo with "Without U", TWS debuted with "Plot Twist", Super Junior-L.S.S. made their unit debut with "Suit Up", and tripleS Aria made a unit debut with "Door". Kim Jae Hwan returned with "Ponytail", AB6IX made a comeback with "Grab Me", CIX came back with "Lovers or Enemies", H-1KEY came back with "Thinkin' About You", BXB returned with "Airplane", EVNNE made a comeback with "Ugly", and POW came back with "Valentine".

As for the winners, NMIXX and RIIZE were the nominees, but it was NMIXX who took the win with "DASH". Congratulations to NMIXX!

Other performers included NMIXX, ITZY, Choi Ye Na, SISTAR19, Hui, and JD1.

Watch the performances below!

WINNER:

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DEBUT: Seola

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DEBUT: TWS

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DEBUT: Super Junior-L.S.S.

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DEBUT: tripleS Aria

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COMEBACK: Kim Jae Hwan

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COMEBACK: AB6IX

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COMEBACK: CIX

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COMEBACK: H1-KEY

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COMEBACK: BXB

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COMEBACK: EVNNE

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COMEBACK: POW

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NMIXX

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ITZY

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Choi Ye Na

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SISTAR19

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Hui

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JD1

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