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

On this week's episode, Baekho debuted solo with "No Rules", Lee Chae Yeon debuted solo with "HUSH RUSH", Roy Kim came back with "Take Me Back in Time", MAMAMOO made a comeback with "ILLELLA", UP10TION came back with "What If Love", Dreamcatcher returned with "Vision", Park Ji Hoon came back with "Nitro", Kwon Eun Bi returned with "Underwater", Kep1er made a comeback with "We Fresh", TAN came back with "Beautiful LIE", and Stray Kids returned with "CASE 143".

As for the winners, Stray Kids and TREASURE were the nominees, but it was Stray Kids who took the win with "CASE 143". Congratulations to Stray Kids!

Performers included TREASURE, Seulgi, AB6IX, Touched, CRAVITY, LIMELIGHT, and mimiirose.

Watch the performances below!

WINNER:

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SOLO DEBUT: Baekho

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SOLO DEBUT: Lee Chae Yeon

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COMEBACK: Roy Kim

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COMEBACK: MAMAMOO

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COMEBACK: UP10TION

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COMEBACK: Dreamcatcher

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COMEBACK: Park Ji Hoon

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COMEBACK: Kwon Eun Bi

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COMEBACK: Kep1er

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COMEBACK: TAN

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COMEBACK: Stray Kids

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TREASURE

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Seulgi

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AB6IX

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Touched

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CRAVITY

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LIMELIGHT

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mimiirose

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