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

This week's episode was a 'Summer Special' featuring SISTAR, AOA, EXO, Red Velvet, HyunA, Seventeen, NCT Dream, Weki Meki, Pentagon, A Pink, Girls' Generation, IZ*ONE, Oh My Girl, TWICE, Jung Se Woon, GFriend, Soyu & Ovan, INFINITE, DAY6, KARD, TXT, BLACKPINK, NCT 127, and BTS.

As for the winners, Baek Ah Yeon and IZ*ONE were the nominees, but it was IZ*ONE who took the win with "Secret Story of the Swan". Congratulations to IZ*ONE!

Watch the performances below!

WINNER:

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SISTAR

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AOA

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EXO

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Red Velvet

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HyunA

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Seventeen

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NCT Dream

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Weki Meki

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Pentagon

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A Pink

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Girls' Generation

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IZ*ONE

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Oh My Girl

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TWICE

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Jung Se Woon

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GFriend

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Soyu & Ovan

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INFINITE

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DAY6

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KARD

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TXT

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BLACKPINK

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NCT 127

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BTS

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