By TOM DIDATO C-I (Camden, S.C.) sports editor tdidato@chronicle-independent.com Some people go to a concert wanting to see the lead act and wanting to hear from the lead act only. Not many go with ears wide open hoping to take away something more than a singer performing something more than just their old or new hits. As he made his way to his first concert, to see Willie Nelson on stage, a young Jacob Johnson got more than he bargained for at the show.