Woo! Thread necromancy! Bringing this back up because I realised how perfect this is for Nightmare Moon. Imagine it playing just before she breaks free from her moon prison. The "otherworld" is of course Equestria:
The lyrics are pretty hard to understand due to growly voice syndrome so here they are, slightly edited for fun: Go now, if you want it An otherworld awaits you Don't you give up on it You bite the hand hoof that feeds you All alone, cold fields you wander Memories of it, cloud your sight Fills your dreams, disturbs your slumber Lost your way, a fallen knight. Hold now, aim is steady An otherworld awaits you One thousand years, you ready? The otherworld, it takes you Go into the sand, and the dust in the sky Go now, there's no better plan than to do or to die Free me; pray to the fayth in the face of the light Feed me; fill me with sin, and get ready to fight You know you will You know you will You know it, you know it, you know it, you know that you will You know it, you know it, you know it, you know that you will You know you will... Fight, fight, fight! Fight, fight, fight! Fight, fight, fight! Fight, fight, fight! Hope dies, and you wander The otherworld, it makes you Dreams, they rip asunder The otherworld, it hates you Free now, ride up on it Up to the heights, it takes you Go now, if you want it An otherworld awaits you