I grew up with country music (it's all my parents ever listened to) until high school when I discovered rock, jazz, and other forms. Still a fan of the "classic" country: Merle, Wille, Waylon Jennings, Johnny Cash, Roger Miller, Loretta Lynn (my dad had coffee with her when he was younger - not a date, just met her when she performed at a military base he was stationed at), Barbara Mandrell, Crystal Gayle, Dolly Parton (she did a cover of Collective Soul's Shine in a bluegrass style that kicks ass as far as I'm concerned), Charlie Pride, Statler Bros, etc. I don't listen to country much anymore, but I do like some "current" artists like Alan Jackson & Toby Keith (really love the duet with Willie on Beer for My Horses, and the Willie tribute where Toby sings "I Won't Smoke Weed with Willie Again" - hilarious).
And speaking of bluegrass (yes I did, look at the Dolly entry), one of the bluegrass classics: