[gate whirs] [overlapping chatter] - [gasps] Wait!

What are you kids doing here?

They're in the middle of their presentation.

- A kid's place is exploring space!

- Y-y-yeah, Mom.

What she said!

- A-and what's the deal with Earth "hot dogs"?

They aren't necessarily hot, and there's no dog.

- [nervous chuckling] Boy!

We sure could use some actual Earthie kids right now.

Why didn't we bring them?

- And they're here!

[lively music] - Ooh!

That's right!

Here they are, real Earthies!

[all gasping] [together] Real Earthies?

- Hey, Bortron 7!

- Planet Earth in the house!

Whoo!

♪ ♪ - ♪ We've seen some planet systems ♪ ♪ From Rigel to Arcturus ♪ ♪ We've stopped and shopped at lots of spots ♪ ♪ Just like your average tourist ♪ [both singing] ♪ We toured the mighty Jupiter ♪ ♪ And all his sons and daughters ♪ ♪ But then we found this planet ♪ ♪ Mostly covered with liquid water ♪ [review board gasping] all: Liquid water?

- ♪ Plus it's not too hot ♪ ♪ And no, it's not too freezing ♪ - ♪ Add to which its atmosphere is suitable for breathing ♪ [all singing] ♪ It's really not too big ♪ ♪ And really not too small ♪ ♪ And planet Earth is what it's called ♪ [gentle piano playing] ♪ ♪ ♪ Water just falls from the sky ♪ ♪ Our word for it is rain ♪ ♪ Filling up our flatlands ♪ ♪ And rolling down our plains ♪ - ♪ There's lakes and rivers everywhere ♪ ♪ And-- ♪ Wait, what-- what do they call those things in cities that shoot water in the air?

kids: Fountains!

- Ah!

both: Fountains!

- ♪ Yeah, forget that it's got ice caps ♪ ♪ Forget about the mountains ♪ both: ♪ There's so much water in this place ♪ ♪ It's shooting out of fountains ♪ - ♪ So have you been to planet Earth?

♪ ♪ If not, well, then you oughter ♪ ♪ What makes this planet Earth so great?

♪ ♪ I'll tell you-- ♪ ♪ Just add water!

♪ all: ♪ What makes this planet Earth so great?

♪ ♪ We'll tell you-- ♪ ♪ Just add water!

♪ [cheers and applause] - Look, Sean!

- I know!

Look at all the Sunspots.

[cheering continues]