Legends don’t come much bigger than Willie Nelson. As an actor, musician and activist, Nelson has had an incalculable footprint on both popular culture and the arts. His pioneering image of an outsider rethinking country music’s tradition and forms — welcoming the influences of jazz, rock and liberal politics — has changed the course of country music forever, helping to usher in a new wave of progressive singer-songwriters (such as Sturgill Simpson) who are much more willing to experiment with genre boundaries. Every time Nelson swings through Dallas, he brings a little extra enthusiasm with him. Texas is his home, after all — he was born here, he recorded his best effort, Red Headed Stranger, in Dallas, and he experienced his first arrest for marijuana in our city (sorry, Willie). Perhaps that’s why Nelson has provided Dallas with two dates this time around — that’s two chances for you to catch the icon live. And let’s not kid ourselves: As Nelson creeps past 84 years of age, the window for finally seeing the man, myth and legend in the flesh is slowly shrinking.