You are lucky.
You can see and hear it by clicking here (for now anyway; note you'll probably have to see a short ad before the ad for special).
Here are the lyrics:
Hey party people, it's Charlie B
Bringing Halloween Thursday to ABC
and rolling on a pumpkin
trick or treat
then the party gets thumpin'
Lucy's getting bossy
Snoopy's feeling saucy
and things are getting crazy with my Peanuts posse
But where is Linus? This party's posh
He's waiting in the field for a mythical squash