Amatsuki's got that cheerful, boyish voice that's pretty much his trademark as an utaite. He's known for approaching covers pretty casually—if he hits a wrong note, he doesn't sweat it. That said, fans often note he's capable of way more serious, powerful vocals when he actually commits to it, which he showed off in the "Nijigen Dream Fever" MV. He's also developed a bit of a reputation for his "elmo voice," which has become its own thing in his fanbase.

Here's the weird part though: he's 30, but he still looks like he's barely out of his teens. His personality matches too—his tweets and blog posts tend to be pretty childish, which just adds to the whole vibe. It's kind of his thing at this point.