We see Gandalf and the Balrog in the big showdown. Then the Balrog picks up his wip and starts to sing
Bal-rogs don’t die.
Bal-rogs don’t die.
Bal-al-rogs
Do-on’t die-ie-ie.
They don’t die.
Bal-al-rogs
Do-on’t die.
Yes, yes, they can’t die.

Ga-an-dalf, say “Nah-mah-ree-eh,
Nah-ah-vehr.”
Ga-an-dalf, you’re oh-old school,
You’re so old school.

Sings to Gandalf
Silly Wiz…you cannot win.
Silly Wiz…you’re gonna fall.
Silly Wiz…you’re gonna cry.
BALROGS DON’T DIE!
BALROGS DON’T DIE!