It’s a known fact that the best Country musicians tour in the summer, when the weather is nice, and artists can party with fans in the best outdoor arenas. This year, some truly incredible country musicians will be performing all over the country, including Grammy award-winning musicians Chris Stapleton and the Dixie Chicks. So, in honor of the first day of Summer, here are the Best Country Music Tours in 2016.   Miranda Lambert: Keeper of the Flame Tour “Keeper …