This baby has some heart...and some serious soul.

You see, the baby appears to be clapping during a 14-week ultrasound. The parents sing "If You're Happy and You Know It" and it looks like the little bundle of joy claps along.

Real? Fake? Who ultimately knows?

What we do know is the baby is the youngest child star in history and the first to actually be a child star before even being born.

Check out the entire clip below.