1 yellow cake mix, prepared as directed on pkg. (3 layers)

TOPPING:

1 (8 oz.) Cool Whip
1 (8 oz.) cream cheese
1/2 c. granulated sugar
1/2 c. 4X sugar
1 can blueberry pie mix

Prepare cake mix as directed on package. Let cool.

TOPPING: Combine Cool Whip, cream cheese, and sugar. Spread on each layer and top with blueberry pie mix. Keep refrigerated.