How about twisting this around a bit?

To the tune (roughly)of the "10 Minutes Ago" waltz from "Cinderella"

Ten minutes ago, I saw it!
I glanced up as I combed out my hair
And there it was steaming,
O'er the waves brightly gleaming,
The dreaded air-person boat tour!

They tell me, it doesn't exist!
That maybe I ate a bad fish
But I tell you, I saw it!
as it shattered the quiet
of the fjord, as I combed out my hair!

Yes, I saw it!
No, I'm not mad!
They were taking deep breathes of the air
And I heard them, as they chattered
And pointed at me in my lair!

They tell me, it doesn't exist!
That maybe I ate a bad fish
But I tell you, I saw it!
as it shattered the quiet
of the fjord, as I combed out my hair!

They had legs like a land animal does!
No sign that a fin there once was!
and their hair it was not green,
but the strangest that I've seen
some was even as bright as the sun!

Yes, I saw it!
No, I'm not mad!
They were taking deep breathes of the air
And I heard them, as they chattered
And pointed at me in my lair!

Ten minutes ago, I saw it!
I glanced up as I combed out my hair
And there it was steaming,
O'er the waves brightly gleaming,
The dreaded air-person boat tour!