Copy cat pullet?

[Byrd gal]

My 12 week pullet just out of the blue started the egg song!! I was putting them in for the night she was on her roost and just let it out. They are still in the honking stage so my mind is blown. Do you think she is going to have hormone or laying issues?

 

[Sussex19]

I should say she just decided to try it out!
All chickens mature at different rates so I wouldn't have thought it's anything to worry about. Although I don't have that much experience.
Also maybe it was more of an alarm call? They tend to sound simple to me.
What kind of pullet is she?

 

[aart]

Also maybe it was more of an alarm call?

Yes.
The 'egg song' sounds a lot like an alarm call.

 

[Ridgerunner]

The 'egg song' sounds a lot like an alarm call.

Yes it does. I've heard it many times, sometimes several give it, even when I can't see any threat.