Willie Nelson is continuing his Fourth of July Picnic tradition in Austin, Texas this year.  The country legend’s 42nd annual Independence Day celebration is returning to the city for the first time in five years.  Headliners include Willie’s collaborator Merle Haggard, Eric Church, Kacey Musgraves, Chris Stapleton, Sturgill Simpson, Asleep At The Wheel and Jamey Johnson.  This year’s event will need two stages at the Austin360 Amphitheater to accommodate the twenty artists on the line-up.