Lee Hi makes her debut with "1, 2, 3, 4″ on 'M! Countdown'!

The countdown for 'K-Pop Star' finalist Lee Hi's debut has ended with the release of "1, 2, 3, 4"!

Since the release of the song, the singer has hit the roof on MelOn's real-time charts numerous times, achieving a feat unprecedented for a rookie artist. As Lee Hi is still a rookie, Yang Hyun Suk has personally taken part in her entire debut process, including her music program debut performances.

The soulful singer is now continuing promotions with her debut stage on tonight's episode of 'M! Countdown'.

Check out her performance below!

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• debut
• m countdown
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• lee hi