[Spoken Intro: Elmo & Katy Perry]
Do, do, do, do, do, do, do, do
Hi, Elmo!
Oh, oh, hi Miss Katy!
Are you ready to play dress up?
Oh? Dress up?
You said you wanted to play dress up
Well, don't you?
Uh, well, I, uh
Come on Elmo, don't you wanna play?
I, uh, buh, uh...
Elmo!

[Verse 1: Katy Perry]
You wanna play, so I wore dress up clothes
Then you ran away, left me here in this pose
How am I supposed to play with you?

[Chorus: Katy Perry]
You're up, then you're down
You're running around
You're fast then you're slow
You stop, then you go
You're hot then you're cold
You're yes then you're no
You're in then you're out
I'm starting to doubt
You
You don't really wanna play, no
You just really wanna go

[Verse 2: Katy Perry]
We used to be
Just like twins, so in sync
Used to laugh while we played
Now you just run away
Didn't know, that you were gonna change

[Chorus: Elmo & Katy Perry]
Elmo's up, Elmo's down
Always running around
You're fast then you're slow
You stop, then you go
He's hot and he's cold
You're yes then you're no
He's in and he's out
I'm starting to doubt

[Bridge: Katy Perry]
Someone stop that monster
Gotta chase him all over
How to catch him, I wonder
He's too quick for me

[Chorus: Katy Perry & Elmo]
You
You don't really wanna play, no
You
You just really wanna go, go
Elmo's up, Elmo's down
Always running around
You're fast then you're slow
You stop then you go

[Spoken Outro: Katy Perry & Elmo]
Elmo, do you wanna play?
Well, Elmo is playing Ms. Katy
Elmo's playing tag
You're it! Ah ha ha ha
Not again!