Dolly Parton proved that helping others is not only easy to do, but can be a lot of fun. | Katherine Bomboy/NBC Dolly Parton was on her way to the studio to polish off “Blue Smoke” when the SUV she was riding in collided with a sedan in a Nashville intersection in 2013. At the hospital, she struck an unlikely friendship with her physician, Naji Abumrad, who, like Parton, was raised in a misty mountain village, hers in East Tennessee and his in Lebanon. “It’s just like how you meet people in your life. You just click, you just feel like you know them,” Parton once told his son, Jad Abu...