Music siblings AKMU returned in two years!
I've waited two years to see this combination T ^ T
Please sing for a long time...!

From AKMU's hit songs medley
Genius musician brother and sister ↗
200% Impromptu, instantly showing composing abilities (great ♡)

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What is the program in the video?

[Knowing Brothers]
http://bit.ly/2VuTtho
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