Ready or not here I come!

Ready or not here I come!
Here I come with my wand
Here I am - the Tomorrow
You didn't expect so soon.

Ready or not here I am!
Here I am with a new name
Here I am called Today
I changed my name from Tomorrow.

Ready or not there I go!
There I go with my wand
There I go - the Today
You couldn't believe so soon.

Ready or not there I was!
There I was with the old name
Now I am called Yesterday
I changed my name from Today...