I was really suprised when I got a link to this, there's a youtube channel where this girl semi-translates a number of Avatar openings into english and sings them to the song, they're extremly well done, and I was so happy to see she did both mirai nikki and attack on titan's openings.
here are the two openings:
https://www.youtube.com/watch?v=PjDvJKQIUDI
https://www.youtube.com/watch?v=0WdUEl89M7k
her main channel if you're looking for more:
http://www.youtube.com/user/JubyPhonic?feature=watch
I'm not affiliated with her in any way, I just think talent like this deserves to be shown to the masses
