I own nothing. Just took that awesome animation and properly synced it with the English version of the song. (Even if doing that was a pain...) Lyrics are also synced, turn on subtitles for them.

Most thanks should go here:
The original animation (Russian): https://youtu.be/_JGRXSPRMmM
The English cover of aLIEz: https://youtu.be/9G9CPZ8Zd7k

This is an alternative interpretation of Equestria Girls, without the humans.
Explanation of the AU: https://youtu.be/viXpCUEc1zQ?t=24s (Turn on the subtitles!) In the end it also explains what exactly is going on in this PMV and why.
They also have a sequel and a side story! https://www.youtube.com/user/killme2paza

Ponies belong to Hasbro, the song cover is by Amanda Lee, the original song and the anime it's from also belong to someone.

And, I guess, an honorable mention should go to https://youtu.be/8gP_ZqwtvRs
Without its horribly out of sync audio, I'd just be content with the original Russian video. (I still like the original better, go check it out!)