Easiest Lemon Pie

Ingredients

• 1 pastry crust, of your choice you can use a baked, graham cracker, etc
• 1 (14 ounce) can sweetened condensed milk
• 1 (12 ounce) container Cool Whip, you can also use just 8 oz if you prefer
• 1 lemon, juice of
• 1 (6 ounce) can frozen lemonade concentrate, thawed (if you cannot find 6 oz. can, use 6 oz out of a larger can)