Gary DeCarlo (who actually sang Na Na Hey Hey) passed away.

This is an interesting article about how the song came to be (intended as a "throw away") - along the "invention" of the group Steam...

http://www.npr.org/sections/therecord/2017/06/30/534753410/gary-decarlo-singer-of-na-na-hey-hey-kiss-him-goodbye-dies-at-75



(this is in the article as well)



https://www.youtube.com/watch?v=HQOFm1gvhn4