I don't usually like baking with cake mixes, but I have had this recipe in my files for a while and I'm trying to work through some of them to try them out.
LEMONADE POUND CAKE
1 package plain white cake mix
1 cup sour cream
1 container (6 ounces) frozen lemonade concentrate, thawed
1 package (3 ounces) cream cheese, at room temperature
3 large eggs
1 cup powdered sugar
3 tablespoons lemon juice
1 teaspoon grated lemon rind
Place the cake mix, sour cream, lemonade concentrate, cream cheese, and eggs in a large mixing bowl. Blend with an electric mixer on low speed for 1 minute. Scrape down the sides of the bowl with a rubber spatula. Increase the mixer speed to medium and beat 2 minutes more, scraping down the sides again if needed. The batter should look well blended. Spoon the batter into a bundt pan that has been sprayed with cooking spray, smoothing out the top. Bake at 350 degrees for 40-45 minutes. Remove the pan from the oven and place it on a wire rack to cool. Prepare the glaze by whisking the powdered sugar, lemon juice, and lemon rind in a bowl. Turn the cake out onto a serving plate. Spoon the glaze over the top.