Kim Junsu covers the song Alone sung by Gummy. The original video was released the 18th of March.

Lyrics (Kim Junsu short version):

I feel like I am alone.
Even your eyes are always looking elsewhere
Maybe I already got used to them
I am not seen anywhere in your heart.
I don´t even make excuses for petty arguments.
I get used to it before I know
I don´t even get angry
I am just exhausted with the piled up emotions
I feel like I´m getting more and more lonely
Because I feel like I´m alone
That´s why
Because I feel like it´s just me
That´s why
Even if I´m with others
I feel like I´m alone
Somewhere between those days
Because I feel like I´m left alone
That´s why
Actually I don´t remember since when
Maybe that´s why maybe I got bored with you
Yes, let´s stop now

Original video: