Dolly Parton, patron saint of country music and one of the last great things about America, is alive, well and still hard at work, she reassured fans in a video Wednesday. “Do I look sick to you? I’m working hard here,” Parton, 79, said in the two-minute video filmed while she was recording commercials for the Grand Ole Opry, Nashville’s legendary music venue. “I ain’t dead yet!” she captioned the video. “I wanted to put everybody’s mind at ease ― those of you that seem to be real concerned,