Disclaimer: I don't own Harry Potter
Peter,
You were trusted.
Peter,
You betrayed.
Peter,
You're a filthy rat
Oh, how did you get that name
Peter,
It's a secrete
So you don't tell anyone
Peter,
Goodness will prevail
The Dark Lord fights to no avail
Peter,
You were trusted
Peter,
You betrayed
Peter,
Why ever did you
Have to be afraid
Peter,
You're an idiot
Who can't be any good
Peter,
You have built up hate
There is truth to what I say
Peter,
You were trusted
But Peter,
You betrayed.