LORETTA LYNN says that when you look at her, you're looking at country. With classics such as "Coal Miner's Daughter," "You Ain't Woman Enough" and "The Pill," the forthright Kentucky-born woman is an American music legend on par with Patsy Cline and Johnny Cash. She experienced a career revival with her 2004 album, Van Lear Rose, produced by Jack White of the White Stripes. On Sat., APRIL 21, she brings her extensive catalog to the Arena at Gwinnett Center. For more on Lynn, see Vibes. $32-$45. 7:30 p.m. 6400 Sugarloaf Parkway, Duluth. 770-813-7500. www.gwinnettcenter.com.