Artist also performed "Carolina" at University of North Carolina at Chapel Hill on Saturday Eric Church was born and bred in North Carolina, and he gave back to his community on Saturday when he gave a moving commencement speech to graduates of the University of North Carolina at Chapel Hill, followed by a rendition of his “Carolina.” Church, who wore a graduation gown and sunglasses, strummed his guitar during the speech and used its strings as a metaphor for living a harmonious life. “Six strings, six strings of life and willingness to keep them in tune,” he told the students. “Six principles, six pillars. When all six are in tune with each other, the chord your life makes is full and resonant and true. [But] all six will drift. Not one or two. All six. In their own time, in their own season.” After detailing how faith, family, marriages, and communities can all add discord to a life, he brought it back to the metaphor.…