Hey, Sick Alice says it's his birthday...

[daglob]

They say it's your birthday 
It's my birthday soon, yeah
They say it's your birthday
We're gonna have a good time
I'm glad it's your birthday
Happy birthday to you

Ah
Ah
Ah
Come on
Come on

Yes we're going to a party party
Yes we're going to a party party
Yes we're going to a party party

I would like you to dance (Birthday) 
Take a cha-cha-cha-chance (Birthday)
I would like you to dance (Birthday)
Dance yeah

Oh
Come on

I would like you to dance (Birthday)
Take a cha-cha-cha-chance (Birthday)
I would like you to dance (Birthday)
Oh dance! Dance

They say it's your birthday 
Well it's my birthday soon, yeah
They say it's your birthday
We're gonna have a good time
I'm glad it's your birthday
Happy birthday to you

Paraphrased slightly.

[spydermann93]

Happy birthday, SA!

[OrWolvie1]

Happy Birthday, SA!   

[BentonGrey]

Haha, well, that is quite a celebration!  Happy birthday SA!  We're very glad you're one of us! 

[crimsonquill]

Happy Birthday, SA!

- CQ

[WyldFyre]

Happy Birthday SA, and many more.   

[Podmark]

Happy B-Day!!

[SickAlice]

Thanks all. I had a pretty laid back one.