Seven years old

 So my youngest nephew turned seven. It comes as no surprise that he can sing this song word for word:

Once I was seven years old, momma told me
Go make yourself some friends or you'll be lonely
Once I was seven years old

And he did.  And he did flips:

Jumped for joy:

And blew out candles on a cake:

I should mention that his mom made the cake and it looked fabulous.