[Intro: Johnny]
(Ah, yeah)
Ay, bae, gon' love that like it's your birthday
Say, say, say gon' love that like it's your birthday
Ay, bae, gon' love that like it's your birthday
Shake, shake, shake, pop champagne 'cause you're worth it

[Verse 1: Jaemin, Jisung, Hendery]
Wait, wait, wait (Yeah)
Why do you look so serious? (Ayy)
Calm down, yeah, take a deep breath (Ayy)
Tonight we gon' be okay (Be okay)
We endured a long time of fightin' (Fightin')
The postponed celebration, let's pop it (Pop it)
Now it's the perfect timing (Ayy)
Need it, because we did the off-season well (Ayy)
Let's lеt it all go and go, leggo (Leggo)
I see it, the fuеgo that burns in your eyes (Ooh)
As if it won't die, even if we spend all night (Spend)
Waking up because of us are the neighbors (Ayy)

[Refrain: Johnny, Jaemin]
What, what, what? (What, what?)
Take what you want, want, want (Want, want)
Like your birthday-day-day (Day, day)
Baby, 'cause you deser-ser-serve (Ay)

[Pre-Chorus: Jungwoo, Johnny, Yuta, Chenle]
Tonight it gon' be a drama (A drama, drama)
The limelight that illuminates you brightly, party, party
Yeah, you vibe lose control, yeah-eh, yeah
Until you like it, like it's ya birthday party

[Chorus: Shotaro, Jaemin, Hendery, All]
Close your eyes, baby, it's alright, baby (This is what you want)
You gonna love it
Whatever your imagine like birthday party
Ooh, eh-oh-eh-oh-eh-oh
It's like ya birthday party
Ooh, eh-oh-eh-oh-eh-oh
Bir-bir-birthday party

[Verse 2: Johnny, Hendery, Jaemin, Shotaro]
(Oh, yeah)
Shake, shake, shake (Shake, shake)
Exploding a bottle of ace (Of ace)
No thanks to your thanks (Bang)
Yeah, that expression of yours is enough (Bang)
You feel it too, yeah, we vibin' (We vibin')
Don't worry about anything, that's a bit toxic (A bit toxic)
Let's turn the bass so loud (Loud)
That our entire body vibrates, wow
Oh, God, can you feel that? (Can you feel that?)

[Refrain: Jisung, Johnny]
What, what, what? (What, what?)
Take what you want, want, want (Want, want)
Like your birthday-day-day (Day, day)
Baby, 'cause you deser-ser-serve (Ay)

[Pre-Chorus: Yuta, Jisung, Johnny, Jungwoo]
Tonight it gon' be a drama (A drama, drama)
Maybe this moment is the highlight, party, party
Yeah, you vibe, lose control, yeah, yeah
Until tomorrow morning, like it's ya birthday party

[Chorus: Jaemin, Chenle, Hendery, Jisung, *All*, **Shotaro**]
Close your eyes, baby, it's alright, baby (It's alright, baby; This is what you want)
You gonna love it
Whatever you imagine, like birthday party
*Ooh, eh-oh-eh-oh-eh-oh*
**It's like ya birthday party**
*Ooh, eh-oh-eh-oh-eh-oh*
**Bir-bir-birthday party*
(Yo, DJ, can we switch it up a bit?)

[Interlude: Hendery, Chenle, Jaemin, All, *Hendery*]
Flip that, switch that (Ooh)
Shawty fine, big facts
I just wanna know that
I just wanna know that (That)
It's too early to be unsatisfied (Oh)
Like ya birthday, count the candles, one, two, three
Let's see what happens with that (Oh, oh)
Birthday, birthday party
Birthday, birthday party, birthday
*Like ya birthday, count the candles, one, two, three
Let's see what happens with that*

[Chorus: Jungwoo, Yuta, All, Chenle, *Johnny*, **Jisung**]
Close your eyes, baby, it's alright, baby (This is what you want)
You gonna love it
*Whatever you imagine, like birthday party* (Yeah)
Ooh, eh-oh-eh-oh-eh-oh
**It's like ya birthday party**
Ooh, eh-oh-eh-oh-eh-oh (Oh-oh-oh-oh)
**Bir-bir-birthday party**

[Post-Chorus: Hendery, All, Shotaro]
This is all for you (All day)
Tonight is for you (Let's play)
Baby, you are worth it
Whatever you imagine, like birthday party

[Outro: Jaemin]
Ay, bae, gon' love that like it's your birthday
Say, say, say, gon' love that like it's your birthday
Ay, bae, gon' love that like it's your birthday
Shake, shake, shake, pop champagne 'cause you're worth it