4, 8, 12, 21, 21...

[Orbital-Fetus]

This was sung during games girls played when I was a kid. Does anyone remember?

 

[jdubnyce]

No

 

[Elle Seven]

Nope

 

[7th Letter Specialist]

*21 Savage has entered the chat*

Nah.. I think I kinda know what you're talking about. It I thought it was a couple numbers before 21

 

[TheMailMan]

No. What era is this ?