Bob Dylan will be one of the special guests at Willie Nelson's 32nd annual Fourth of July Picnic in Texas. Los Lonely Boys will also perform at the Fort Worth Stockyards during the event that will feature more than 20 acts personally selected by Nelson. Tickets go on sale April 25. Nelson and Dylan will be touring together later this year. Nelson's first Fourth of July Picnic took place in 1973 in Dripping Springs, Texas.