Hap Palmer celebrate the day

Let's celebrate the day of your birth
When you joined all the creatures on this earth
The chickie said Peep, the lamb said Baaah
When you arrived, you hollered Waaaaahh
Now we're here to wish you
A very happy birthday
A merry full of mirth day
A welcome to this earth day
Happy Birthday to you!
How old are you today?
How old will you be in one year?
How old will you be in ten years?
How old were you one year ago?
My how you've grown!
Repeat verses 1 and 2
Follow-up:
Sing this song at a birthday party and use the name of the birthday child. For example:
Let's celebrate the day of Sarah's birth
When she joined all the creatures on this earth
The chickie said Peep, the lamb said Baaah
When Sarah arrived, she hollered Waaaaahh
Create a new set of problems and sing this song with the instrumental version (#22).
For example:
How old is Sarah today?
How old will she be in 3 years? ... in 6 years?
How old was she 2 years ago?