I'm not 100% positive bout this one but im pretty sure its right hope u like!

 G                B             G
You messed up in potions yesterday
      D              C                   B
But everyone still thinks you're really great
         G
Except Snape
         G
Except Snape
         G    A  G
Except Snape and me

       D               C               B
'Cause we see you for what you really are
 D             C            B          G
Stupid little dork with a stupid dorky scar
           G
And it's okay
             G
It's really great
              G
'Cause I hate you
     A        G
And so does Snape

       D               C              B
You crashed into the Whomping Willow tree
D                  C                 B        G
No one else would kick you out and make you history
            G
Except for Snape
            G
Except for Snape
            G
Except for Snape
   A        G
Except for Snape

         D                  C             B
'Cause rules are rules no matter who you are
      D                C           B       G
And you're the stupid jerk who wrecked a flying car
          G
And it's okay
              G
It's really great
               G
'Cause I hate you
    A        G 
And so does Snape

 D             C              B
We were teamed up in dueling class
     D            C                    B                G
And no one else believed that I would knock you on your bum
             G
Except for Snape
            G
Except for Snape
           A                   G
We didn't know you talked to snakes
        D          C             B
Which worked out alright in the end
       D          C                  B         G
Now everyone is thinking you're the heir of Slytherin
          G
And it's okay
             G
It's really great
               G
'Cause I hate you
     A                        G
And now so does everyone else