IU演唱的《Rain Drop》的歌詞如下：
女：
It's been raining on me all day
Like a little rain drop in my pocket
Ain't nobody, ain't nobody
It's been raining on me all day
男：
My pockets low and I'm trying to get through
The cloud up in my head won't go away
And everytime I feel like I'm coming out
The clouds get darker and it pours
女：
Yeah I got the fever for the winter time
Cause the feeling never gone away
Ain't nobody, ain't nobody
It's been raining on me all day
男：
All night I can feel my mind in the motion
All over the place with my melody
The sound in my ears won't go away
Yeah it's beating with the rhythm of the beat
女：
Yeah I got the fever for the winter time
Cause the feeling never gone away
Ain't nobody, ain't nobody
男：
But you know that I'm feeling it all over again
女：
Yeah I got the fever for the winter time
男：
Yeah I got the fever for the winter time
女：
I been feeling like this for so long
男：
But now it's finally gone, yeah yeah yeah yeah
女：
Ain't nobody, ain't nobody, it's just me and my mind and my thoughts and my memories and my memories, yeah yeah yeah yeah yeah yeah
男：
Yeah I got the fever for the winter time
女：Yeah yeah yeah yeah yeah yeah
男：Yeah, feeling it all over again
女：Yeah yeah yeah yeah yeah yeah
男：It's been raining on me all day
女：Oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh
合：Yeah yeah yeah yeah yeah yeah oh oh oh oh oh oh oh oh oh oh oh oh
男：It's been raining on me all day
女：Oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh
合：Yeah yeah yeah yeah yeah yeah （it's been raining on me all day）ohohohohohohohohohohohohohohohohohohohohohohohohohohohohohohohohoh（it's been raining on me all day）