以下是moumoon blue rain的歌詞：
Blue rain, falling down
Smiling while the sky is gray
Even though my heart is torn
I won't let it show
So I sing along
Blue rain, falling down
My memories of you
Just like a broken song
It's not over, not over yet
(Chorus)
You're still in my heart
I won't let you go
I won't let you go
You're still in my heart
Now and then, memories arise
A touch of melancholy in the air
Even so, I'll keep on going
Won't let this moment slip away
(Chorus)
You're still in my heart
I won't let you go
I won't let you go
So blue, so true
You were the light in my life
Like a melody, I can't forget
So I sing along
(Bridge)
As the rain keeps falling down
My thoughts of you will never end
Days go by, like tears in rain
But you'll always be in my heart
(Chorus)
You're still in my heart
I won't let you go
I won't let you go
Now I realize
It doesn't matter where you are
My love for you will never fade away
So blue, so true
I remember everything about you
Even the pain, the laughter too
And so I sing along... (x2)