My Hero, Zero: School House Rock video about how important the number Zero really is.

Lyrics

Zero?
Yeah. Zero is a wonderful thing.
In fact, zero is my hero!
How can zero be a hero?

Well, there are all kinds of heroes, you know.
A man can get to be a hero for a famous battle he fought;
Or by studying very hard and becoming a weightless astronaut.
And then there are heroes of other sorts.
Like the heroes we know from watching sports.
But a hero doesn't have to be a grown up person, you know.
A hero can be a very big dog who comes to your rescue,
Or a very little boy who's smart enough to know what to do.
But let me tell you about my favorite hero...

Did you ever stop to think about zero?
Zero is fantastic! Why, without the concept of zero,
we'd never be able to multiply, divide, add, subtract,
or even to count very high.

My hero, zero
Such a funny little hero
But till you came along
We counted on our fingers and toes
Now you're here to stay
And nobody really knows
How wonderful you are
Why we could never reach a star
Without you, zero, my hero
How wonderful you are

What's so wonderful about a zero? It's nothing, isn't it?
Sure, it represents nothing alone...

But place a zero after 1
And you've got yourself a 10
(See how important that is?)
When you run out of digits
You can start all over again
(See how convenient that is?)
That's why with only ten digits including zero
You could count as high as you could ever go
Forever, towards infinity
No one ever gets there, but you could try

With 10 billion zeros
From the cavemen till the heroes who invented you
They counted on their fingers and toes
And maybe some sticks and stones
Or rocks and bones
And their neighbors' toes, yeah

And nobody really knows
How wonderful you are
Why we could never reach the star
Without you, zero, my hero
Zero, how wonderful you are

Place one zero after any number
And you've multiplied that number by 10
(See how easy that is?)
Place two zero's after any number
And you've multiplied that number by 100
(See how simple that is?)
Place three zeros after any number
And you've multiplied that number by 1000
Et cetera, et cetera, ad infinitum
Ad astra, forever, and ever
With zero, my hero, how wonderful you are