Pineapple Angelfood Cake

1 16 ounce package of angel food cake mix
1 20 ounce can of crushed pineapple with juice
1 12 ounce container of whipped topping or fresh whipped cream

Preheat oven to 350 degrees F. Spray a 9 x 13 inch pan with non-stick spray. In a large bowl, combine cake mix and pineapple with juice. Mix until well blended. Pour batter into prepared pan. Bake for 25 minutes or until golden brown. Let cool. Serve with whipped topping.