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

On this week's episode, Pentagon's Hui debuted with "Hmm BOP", Gyubin debuted with "Really Like You", DXMON debuted with "Burn Up", SISTAR19 returned with "NO MORE (MA BOY)", OnlyOneOf came back with "dOpamine", YEAHSHINE made a comeback with "Stay With Me", Choi Ye Na returned with "Good Morning", and NMIXX came back with "DASH".

As for the winners, ITZY and RIIZE were the nominees, but it was RIIZE who took the win with "Love 119". Congratulations to RIIZE!

Other performers included CLASS:y, RIIZE, ITZY, B1A4, Jung Se Woon, TRENDZ, 8TURN, LIMELIGHT, JD1, and ALL(H)OURS.

Watch the performances below!

WINNER:

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DEBUT: Hui

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DEBUT: Gyubin

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DEBUT: DXMON

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COMEBACK: SISTAR19

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COMEBACK: OnlyOneOf

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COMEBACK: YEAHSHINE

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COMEBACK: Choi Ye Na

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COMEBACK: NMIXX

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CLASS:y

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RIIZE

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ITZY

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B1A4

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Jung Se Woon

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TRENDZ

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8TURN

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LIMELIGHT

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JD1

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ALL(H)OURS

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