Well, it's birthday time again, but don't you worry
Yeah, I'm talkin' 'bout a girl who's sweet and purty
Yeah, she's sturdy and maybe just a little bit flirty
And she's from Gerty, down in Oklahoma
Where the wild wind blows and everybody knows...

It's Happy Birthday day for Louise
Yeah, Happy Birthday, if you please
Well, there's snow up in the trees
But she's as warm as a summer day...

Happy Birthday day for Louise
She's a Gerty girl and you best believe
She's having a happy-happy birthday day
Yeah, a Happy Birthday day

Yeah, she's sturdy and maybe just a little bit flirty
And she's from Gerty, down in Oklahoma
Where the wild wind blows and everybody knows...

It's Happy Birthday day for Louise
Yeah, Happy Birthday, if you please
Well, there's snow up in the trees
But she's as warm as a summer day...

Happy Birthday day for Louise
She's a Gerty girl and you best believe
She's having a happy-happy birthday day
Yeah, a Happy Birthday day

(We love you, Mom, so)
Happy Birthday day...
Yeah, Happy Birthday day...
Happy...
Happy...
Birthday...
Day!