If you’re happy and you know it

It’s the one day of the year

You really gotta show it

Cause we expect you to cheer

And when you go and blow it

That’s your one wish of the year

It’s your birthday and you know it

Know it

If you’re happy and you know it

It’s the one day of the year

You really gotta show it

Cause we expect you to cheer

And when you go and blow it

That’s your one wish of the year

It’s your birthday and you know it

Know it

If you’re happy and you know it

It’s the one day of the year

You really gotta show it

Cause we expect you to cheer

And when you go and blow it

That’s your one wish of the year

It’s your birthday and you know it

Know it

If you’re happy and you know it

It’s the one day of the year

You really gotta show it

Cause we expect you to cheer

And when you go and blow it

That’s your one wish of the year

It’s your birthday and you know it

Know it