updated with lyrics:

**Chorus:**

I see you derivin' in class during calc-u-lus

And you've got f(u)

Which you want to find the derivative of,

it's just f '(u) and a du too,

it's just the chain rule,

a great cal-cu-lus tool

and you use it when...(you use it when)

When there's an inside and an outside that you can write as,

f(u)

(ooo ooo ooo)

Another derivative tool,

is the product rule.

And I know you can get it done

The slope of the product

of functions 1 and 2

is 1d2 plus 2d1.

I pity the foo-ooo-oool

who forgets the product rule

(oh, that's how you get it done)

(it's just 1d2 plus 2d1)

OoooOooOoOh

There's just one more rule

Wait... what was the chain rule again?

**-Chorus-**

For quotient, quotient, quotient you don't have to, have to pull out your hair,

(your hair, your hair, your hair)

Cause it's just low di high minus hi di low all over low squared

(Low squared, low squared, low squared)

To find dy dx dy dx dy dx baaa-aaa-aaaby,

But what about, that dang chain rule?

**-Chorus-**