For anyone not familiar with the name, he was the guy who sang most of Digimon's opening themes including "Butterfly". I was pretty excited when he was brought on to re-record the music for Digimon Tri, the ending song for Part 2 being the last single released five days before his death from cancer.
Goddamn. I feel like I lost a bit of my childhood. It sucks harder than losing Leonard Nimoy, but he had lived to a ripe old age and achieved so much.
Here's a link to the original theme, since LJ has updated and I don't remember how to embed into the post: https://youtu.be/6qtn_hu0CXk