Sitcom américaine de 1976
Titre québecois :
Papa c'est toi ! Papa c'est moi !

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Big John has a problem, as you can plainly see,
One minute he's 40, the next he's 33.
Big John keeps a-changin', before your very eyes
he's 25, and then 19, then 12 years old in size

Big John, Little John, what a way to grow,
Big John, Little John, he grew from high to low

Big John drank from the fountain of youth, he took a little drink
And that magic water, is the thing that made him shrink.
Now, when he's little John he never knows just when...
ZAP! He'll change and rearrange, and he's Big John again...