This is a song from Nickelodeon's "Avatar: the Last Airbender," episode 
"The Cave of Two Lovers."

Secret Tunnel

A
Two lovers forbidden from one another

A                   E
A war divides their people

E                           A
And a mountain divides them apart

A                    E
Built a path to be together

(no chord, spoken)  And I forget the next couple of lines but then it goes

A
Secret tunnel

D
Secret tunnel

D
Through the mountain

E                           A
Secret secret secret secret TUNNEL!