Why is Amatsuki under the female section? ^_^;
This is a different Amatsuki whose name is 甘月. The Amatsuki you're thinking of, 天月, never covered that song. If you click on Amatsukis name on the page then instead of taking you to Amatsuki as most links would, it takes you to 甘月's page.
Okay, I added a note on Amatsuki's page about that.
What do you think?