Happy birth-a-doo
Happy birth-a-doo
It's your special day
And we're thinkin' about you
Have a piece of cake
Or heck, have two
It's your special day
So happy birth-a-doo

Well, you're one year older than you used to be
And you're still cool
You've still got it, it's plain to see
You're still cool
Yeah, it's your birthday today
That's why we're here to say
That you're still cool

Ba-ba-ba birthday (birthday)
It's your birthday today (birthday)
Ba-ba-ba birthday (birthday)
It's your birthday today (birthday)
Ba-ba-ba birthday (birthday)
It's your birthday today (birthday)
You're gonna have a great day (birthday)
'Cause it's your birthday today (birthday)
Birthday, yeah!