Oookay, I started this song a long time ago but I never managed to finish it. Yesterday I found it again and thought that, this is pretty good actually so I made few vocal and guitar tracks for it and some kind of mix. Nothing too special, but it's listenable. Soon I'll have a pretty huge song for you to listen, so stay tuned. :)

original song is Children of the grave by Black Sabbath

download: http://www.mediafire.com/download/7e6y4wm7yurjhbe/Children_Of_The_Hive.mp3

Art credit: http://assasinmonkey.deviantart.com/art/Changeling-Behemoths-321921574

Lyrics:
Verse 1:
Sweet and tasty love in their minds
the changelings start to march
Against the kingdom where the ponies live
and all the hunger in their hearths
They are tired of being starved to death
and to wait for their doom
They'll fight the kingdom until they've won
and the darkness comes flowing through.

Verse 2:
Hatchlings of tomorrow live in the love we consume today
No sun or moon can help them this time in anyway
Must we always live in the shadow of solar fear
When we win the fight for future Equestria will disappear

Verse 3:
So you children of the hive
listen to what I say
If you want a better place to live
Me you will obey!
Show to ponies my might and rage
They better start to pray
Everyone of them will fall
and Celestia meets her grave