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

On this week's episode, fromis_9 came back with "Supersonic", SHINee's Taemin returned with "Sexy in the Air", NMIXX made a comeback with "See That?", SF9 came back with "Don't Worry, Be Happy", Hyolyn returned with "Wait", and MAMAMOO's Moon Byul made a comeback with "Is This Love?".

As for the winners, fromis_9 and NCT's Jaehyun were the nominees, but it was fromis_9 who took the win with "Supersonic". Congratulations to fromis_9!

Other performers included KARD, DRIPPIN, LIGHTSUM, ARrC, YOUNG POSSE, MCND, Catch the Young, BOY STORY, LUN8, and ILY:1.

Watch the performances below!

WINNER:

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COMEBACK: fromis_9

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COMEBACK: Taemin

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COMEBACK: NMIXX

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COMEBACK: SF9

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COMEBACK: Hyolyn

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COMEBACK: Moon Byul

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KARD

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DRIPPIN

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LIGHTSUM

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ARrC

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YOUNG POSSE

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MCND

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Catch the Young

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BOY STORY

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LUN8

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ILY:1

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SEE ALSO: fromis_9 win #1 + Performances from August 24th 'Show! Music Core'!