[Intro: Seulgi, All, Irene]
Sometimes you gotta be bold
Just rock the world (Booya!)
Lalala lalala lalalala (Happiness!)
Lalala lalala lalalala
(Are you happy? Uh)

[Verse 1: Seulgi, Irene, Wendy]
Worrying? blow up
Feeling down? change up
Trying to cheer up, wind up
Great things will happen all at once, straight
Every day, I'm more style up
Focusing on things that will make my feelings go up
Want me to share
My secret to happiness?

[Verse 2: Joy, Wendy, Irene]
In the morning, I wake up
And I tell my mom I love her
(Ah, my sweet daughter)
The happy feelings that follow me
Are so cute that I'm happy
(She's talking)

[Refrain: Seulgi, Irene, Joy,*Wendy*]
Money and power
I feel bad for the adults
Who only chase after that
They are truly unhappy
The world is filled with
Happy things and great things
*That it's been a while since we stopped caring about
Money and power*
[Pre-Chorus: Irene, Joy]
I'm a little different
I just do what I want to do
If you just worry and become an adult
You'll have regrets
Yesterday, today and tomorrow
My journal is filled with adventures to find happiness
I'm a little different
I believe in the power of optimism

[Chorus: All, Wendy]
Lalala lalala lalalala (Happiness!)
Lalala lalala lalalala (I want it!)
Lalala lalala lalalala (Let's dream!)
Lalala lalala lalalala
(Uh, are you happy? Uh)

[Verse 3: Joy, Irene, Wendy]
I met my friend on my way to school
I'm happy that she ran over to me
And linked her arm in mine with a smile
The groups of boys who are always joking around
I'm happy that they pay attention
When I pass them
She may nag
But my mom says she loves me the most in this world
Hey hey, take out
Those adults who only fight on TV
[Verse 4: Seulgi, Irene]
I like it more and more
I'm happy that I'm me
What makes me even happier
Is that you're next to me
(Uh, what you wanna be?)

[Refrain: Joy, Irene, Seulgi,*Wendy*]
Money and power
I feel bad for the adults
Who only chase after that
They are truly unhappy
The world is filled with
Happy things and great things
*That it's been a while since we stopped caring about
Money and power*

[Pre-Chorus: Joy, Irene, Wendy]
I'm a little different
I just do what I want to do
If you just worry and become an adult
You'll have regrets
Yesterday, today and tomorrow (It's getting better~)
My journal is filled with adventures to find happiness
I'm a little different (I'm happy with me)
I believe in the power of optimism
[Chorus: All, Joy]
Lalala lalala lalalala (Happiness!)
Lalala lalala lalalala (I want it!)
Lalala lalala lalalala (Let's dream!)
Lalala lalala lalalala
(Uh, are you happy? Uh)

[Bridge: Wendy]
Shine on me, let it shine on me
In my embrace, let it shine
Shine on me, let it shine on me
In my arms, let it shine

[Chorus: All]
Lalala lalala lalalala (Happiness!)
Lalala lalala lalalala (I want it!)
Lalala lalala lalalala (Let's dream!)
Lalala lalala lalalala (Happiness!)