When I think of Joe, I think of his songs of peace and social justice and his encouraging the audience to sing along. YouTube has a clip of him singing Joe Hill, but it was shot from far away. You can hear him but not really see him. Instead, I'm putting in this link to Come with Me, filmed at NERFA 2010. http://www.youtube.com/watch?v=nMKVA571PPA&feature=related

Greg also sings songs of peace and social justice, and midway through this clip he encourages the audience to sing with him Here he holds his guitar and doesn't play it, but he can play it and a piano/keyboard very well. I'm sorry he has already started singing when the clip begins. http://www.youtube.com/watch?v=szqzWTWAzu4&feature=related