Well, I haven't found chords, but at least we ought to have the lyrics:

Leader of the Pack
(George Morton, Jeff Barry, Ellie Greenwich, 1964)
Recorded by The Shangri-las

[Spoken]
Is she still goin' out with him?
I dunno.
Here she comes. Let's ask her.
Hey, Betty, is that Jimmy's ring you're wearin'?
Uh-huh.
Is he pickin' you up after school today?
Nunh-unh.
By the way, where'd you meet him?

[Sung]
I met him at the candy store
He turned around and smiled at me - you get the picture (Yes, we see.)
That's when I fell for - the leader of the pack

My folks were always putting him down (down, down)
They said he came from the wrong side of town
(What'dya mean when you say that he came from the wrong side of town?)
They told me he was bad
But I knew he was sad
That's why I fell for - the leader of the pack.

One day my dad said "find someone new"
I had to tell my Jim we were through
He stood there and asked me why
But all I could do was cry
I'm sorry I hurt you - the leader of the pack.

[Spoken]
He sort of smiled and kissed me goodbye
The tears were beginning to show
And as he left me on that rainy night
I begged him to go slow
But whether he heard, I'll never know
Look out! Look out! Look out!

[Sung]
I felt so helpless - what could I do?
Remembering all the things we'd been through
At school they all stop and stare
I can't hide the tears, but I don't care
I'll never forget you - the leader of the pack.

The leader of the pack - now he's gone
The leader of the pack - now he's gone
The leader of the pack - now he's gone.....