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

On this week, TRI.BE debuted with "DOOM DOOM TA", KINGDOM made their debut with "Excalibur", J.Y. Park and Yoyomi got together for "Corny Love Song", Kim Chung Ha returned with "Bicycle", Kang Daniel came back with "Paranoia", Lucy made a comeback with "Hero", and Ahn Sung Joon came back with "Mask".

As for the winners, HyunA and Kim Woo Seok were the nominees, but it was Kim Woo Seok who took the win with "Sugar". Congratulations to Kim Woo Seok!

Other performers included Miyeon & Nam Yoon Soo, ASTRO & Pentagon & VICTON, Kim Woo Seok, HyunA, Dream Catcher, ONEUS, CIX, Cherry Bullet, T1419, and Song Ga In.

Watch the performances below!

WINNER:

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DEBUT: TRI.BE

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DEBUT: KINGDOM

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DEBUT: J.Y. Park x Yoyomi

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COMEBACK: Kim Chung Ha

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COMEBACK: Kang Daniel

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COMEBACK: Lucy

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COMEBACK: Ahn Sung Joon

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Miyeon & Nam Yoon Soo

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ASTRO & Pentagon & VICTON

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Kim Woo Seok

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HyunA

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Dream Catcher

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ONEUS

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CIX

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Cherry Bullet

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T1419

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Song Ga In

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