1 (6 oz.) carton frozen whipped topping, thawed
1 (6 oz.) can frozen lemonade or limeade concentrate, thawed
1 (14 oz.) can sweetened condensed milk
1 prepared graham cracker crust

Beat whipped topping, lemonade or limeade concentrate, undiluted and condensed milk in large bowl with electric mixer. Pour into pie shell and chill at least 1 hour before serving. 5 to 6 servings.