Do you guys enjoy them? I'm a fan, especially of katethegreat19, if you've heard of her.
She covers songs mainly from Final Fantasy as well as various animes. While I can't say I'm a fan of the anime covers (probably because I've never seen any of the animes she does covers for), I am a huge fan of her Final Fantasy covers.
Take a listen if you want.
This one in particular is my favorite: