The two-hour special features once-in-a-lifetime collaborations, surprise appearances, music royalty from the star-studded two-day concert event celebrating Willie Nelson's milestone 90th Bi... Read allThe two-hour special features once-in-a-lifetime collaborations, surprise appearances, music royalty from the star-studded two-day concert event celebrating Willie Nelson's milestone 90th Birthday (recorded live before a sold-out crowd at the legendary Hollywood Bowl in Los Angel... Read allThe two-hour special features once-in-a-lifetime collaborations, surprise appearances, music royalty from the star-studded two-day concert event celebrating Willie Nelson's milestone 90th Birthday (recorded live before a sold-out crowd at the legendary Hollywood Bowl in Los Angeles, California).