This is a song from Nickelodeon's "Avatar: the Last Airbender," episode
"The Cave of Two Lovers."
Secret Tunnel
Two lovers forbidden from one another
A war divides their people
And a mountain divides them apart
Built a path to be together
(no chord, spoken) And I forget the next couple of lines but then it goes
Secret tunnel
Secret tunnel
Through the mountain
Secret secret secret secret TUNNEL!