Bring sugar, 7 cups water, orange juice concentrate, and lemonade concentrate to a boil in a Dutch oven over medium heat, stirring until sugar dissolves. Remove from heat, and stir in whiskey and tea; cool.
Chill at least 2 hours.
Pour 1/2 cup mixture into a cocktail glass with ice. Fill glass with lemon-lime soft drink. Serve immediately.
Note: For testing purposes only, we used Jack Daniel's whiskey.