No Bake Lemonade Icebox Pie

1 cup pre-sweetened lemonade drink mix

1 (8 ounce) container sour cream

1 (14 ounce) can sweetened condensed milk

1 (9 inch) prepared graham cracker crust

In a large bowl, mix together the lemonade mix with sour cream and condensed milk. Pour mixture into pie crust. Cover and refrigerate for about an hour.