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

On this episode, Dongwan returned with "I'm Fine", N.Flying made a comeback with "Lonely", Topp Dogg came back with "The Beat", and TWICE debuted with "Like OOH-AHH".

As for the winners, Taeyeon and BTOB were the nominees, but it was Taeyeon, who took the final win with "I"! Congratulations to Taeyeon!

Other performers of the night were: Kyuhyun, BTOB, Yoo Sung Eun, Park Bo Ram, Oh My Girl, GOT7, Lovelyz, DIA, UP10TION, MONSTA X, Big Brain, Jinju, and Tei.

SEE ALSO: Taeyeon wins #1 + Performances from October 15th 'M! Countdown'!

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DEBUT: TWICE

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COMEBACK: Dongwan

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COMEBACK: N.Flying

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COMEBACK: Topp Dogg

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Kyuhyun

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BTOB

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Yoo Sung Eun

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Park Bo Ram

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Oh My Girl

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GOT7

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Loveyz

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DIA

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UP10TION

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MONSTA X

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Big Brain

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Jinju

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Tei

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