以下是epik high的《Lesson 5》的部分歌詞：
I'm sorry, I'm sorry, I'm sorry, I'm sorry,
I don't know what I'm saying,
I'm sorry, I'm sorry,
Can you believe that we got to be in heaven today?
But now I can't believe what we're gonna do tonight.
We just fell in love.
Take a lesson 5
What it's like to fall in love with the best friend.
Can you tell that it's wrong?
It's like a dream come true.
I'm sorry, I'm sorry, I'm sorry, I'm sorry,
I don't know what I'm saying,
I'm sorry, I'm sorry,
I hope you don't think that I'm selfish.
But it's you and me and our world.
Take a lesson 5
How to keep our love from getting old.
We're young and we belong together.
But there's a million lessons out there.
Please believe that it feels right.
This is what we should do tonight.
I'm learning with you, every day.
This is the lesson 5 that we say.
We fall in love, again and again.
Like the rain, it keeps pouring down.
Our love is brand new.
But we don't care if we feel cold and numb.
Take a lesson 5
What it's like to fall in love with the best friend.
Can you tell that it's wrong?
It's like a dream come true.
Please believe that it feels right.
This is what we should do tonight.
I'm learning with you, every day.
This is the lesson 5 that we say.
This is our lesson 5.
We keep learning and laughing and crying together.
And now we know what we want.
And now we know what we feel together.