Well, it's by the same guy who does a lot of these rock covers of video game songs. He also made them for the major bosses in the Mario & Luigi series too.
But now Shady Cicada has done a rock version of Ashley's Song too:
Interesting choice, don't you think? What do you think of this rock version of that theme?
Wow, I really love his take on the song! I thought I'd never hear a rock cover of this, I listen to his other songs on Soundcloud, all of them are pretty cool!
While i don't think rock fits her (I've always thought jazz would fit her better.) It's still a pretty good cover regardless, and I could see this playing while Ashley is being a Badass.
I like Shady Cicada, and that Ashley cover is great!
Of course, rock is not the style for Ashley, but neither is metal for Metroid music, and stemage did a great job on it.
So yeah, it's a nice song to add to my playlist.