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1theK uploaded a 'Special Clip' of IU performing "Knees," with nothing but a mic in hand and Pianoforte melody to back up her sweet vocals.

The stage is scantily decorated; just several floor lights shining brightly behind her against a minimal grey backdrop. The singer herself is also dressed in dull colors, perfecting the simplistic, slightly dull atmosphere. It is the perfect set for this song in particular, as the lyrics explore the deepening sadness te feel in shedding youth to enter the realm of adulthood where sleep doesn't come easy and te grow più cynical.

Two più of these special clips will be uploaded on November 4 and November 6 at noon on 1theK's YouTube channel.

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