[Verse 1: Lia, Yuna, Yeji]
Who am I? The revolution
I was born inside your head
Different shapes of your illusion
Oh, I can be the dream you always had
Once you thought, became a feeling
I was breathing, I was there (I was there)
Who am I? Would you believe it?
Oh, I'm a fallen angel and I said

[Pre-Chorus: Chaeryeong & Ryujin, Yuna & Yeji]
Call out my name in the middle of the night
When you are afraid, call out my name, yeah
Call out my name in the middle of the night
Yeah, call out my name

[Chorus: Ryujin, Lia, Chaeryeong, Yeji, *Yuna*]
You know I-I-I'm your imaginary friend
You know I-I-I'm here tonight to give you strength
Whеn there's monsters on your cеiling
I'll keep you safe and I will keep you dreaming
You know I-I-I'm your imaginary friend
*You know I-I-I'm, it's you and I until the end*

[Verse 2: Chaeryeong, Yeji, Lia, Ryujin]
Who am I? The evolution
I was born inside your dream
Trust me, I'm not a delusion
Oh, I am everything you wanna be
Come on and dance, dance and don't stop, I'm a little lucky spark
Stoke that feeling in your heart (Ah-ah-ah-ah)
You and I, we gon' ride, can't stop thinking about our vibe
We can jump, we can run and I'm killing it to the top, yeah
[Pre-Chorus: Chaeryeong & Yuna, Ryujin & Lia]
Call out my name in the middle of the night
When you are afraid, call out my name, yeah
Call out my name in the middle of the night
Yeah, call out my name

[Chorus: Yeji, Chaeryeong, Lia, Yuna, *Ryujin*]
You know I-I-I'm your imaginary friend
You know I-I-I'm here tonight to give you strength
When there's monsters on your ceiling
I'll keep you safe and I will keep you dreaming
You know I-I-I'm your imaginary friend
*You know I-I-I'm, it's you and I until the end*