Willie Nelson is once again celebrating Independence Day with music.  The country legend is hosting his annual 4th of July Picnic in Fort Worth, Texas.  The day-long, multi-artist festival features three stages of performances and plenty of food.  A dozen acts are scheduled to join Willie for the event, including Dierks Bentley, Charley Pride, and Jamey Johnson.  The lineup also boasts David Allan Coe, Ryan Bingham, the Josh Abbott Band, and others.  The 41st annual Willie Nelson’s 4th of July Picnic will take place Friday outside Billy Bob’s Texas in the Fort Worth Stockyards.