http://www.youtube.com/watch?v=-L3go7OaQJI
While reading this comment:
"It sounds? like
FUS RO DAH!
THANK THE LOOOOOOOORD
*F-word* COOOOL
OH MY GAAAWD
ME GUSTA"
Easter Egg? I think so

Also, if you have time, I found a cave with a chest filled with goodies that change every time you try it:
http://www.youtube.com/watch?v=Xffq3VK81GM