Tra la la!

Are you worried ′bout impending doom?Those evil villains got you filled with gloom?

But don't you fear, there′s a hero in the sky, the sky, the sky

It's not a bird, and it's not a plane

And it′s not an egg salad sandwich

It′s the waistband warrior

Hear his mighty battle cry

Tra la la!

Underpants! Hey, watch out, crime!

It's Captain Underpants! It′s wedgie power time!

Na-na-na-na-na, Captain Underpants, yeah, yeah, yeah

Faster than a speeding waistband!

Underpants! He's busting down doors

Captain Underpants! While wearing just his drawers

Na-na-na-na-na, Captain Underpants, yeah, yeah, yeah

More powerful than boxer shorts!

His name is Under, Under, Underpants!

I′m saying Under, Under, Underpants!

Oh yeah, by some unlikely chance

Captain Underpants is his name

Tra, tra-tra, tra-tra la la!

Snap your fingers and he'll be right there

That freaky bald dude in his underwear

He′ll drop his trousers and he'll fight to save the day, the day, the day

Oh, there he goes in his dashing cape

Here he comes in his tighty whiteys

All the bad guys soil themselves every time they hear him say

"Tra la la!"

Underpants! Hey, who's that hunk?

It′s Captain Underpants! Is that cotton pre-shrunk?

Na-na-na-na-na, Captain Underpants, yeah, yeah, yeah

Now it is time to fly again!

Underpants! Suspend your disbelief

Captain Underpants! He′ll save the world in his briefs

Na-na-na-na-na, Captain Underpants, yeah, yeah, yeah

To the skies! Shoo-wow!

Under, Under, Underpants

I'm saying Under, Under, Underpants

Check out that superhero stance

Captain Underpants is his name

Stand down, Poopypants!

Oh, Under, Under, Underpants!

He′s Captain Under, Under, Underpants!

Yeah, by some crazy circumstance

Captain Underpants is his name

Tra, tra-tra, tra-tra la la!