Does anyone know anything at all about a 60s group called The Hello People that went on TV and did an anti-draft song called ANTHEM, inspired by Ayn Rand's individualistic novelette of the same name and containing the words:

I'm going to prison so I can be free ...
There's nothing I'd die for ...
I've got something to live for - what about you?

It was a so-so song, but for some reason I've remembered it sometimes wonder what ever became of the group.