1 (18 ounce) can marshmallow creme chocolate for decoration
1 3/4 cups chopped pecans
1 (12 ounce) package white chocolate syrup
1 (12 ounce) package white chocolate cake mix
1 (6 ounce) can lemon-lime flavored carbonated beverage
1 (3 ounce) package instant chocolate pudding mix
3 (3 ounce) packages instant vanilla pudding mix
3 cups confectioners' sugar
1 cup instant lemon pudding mix
1/4 cup lemon-lime flavored carbonated beverage
1 (7 ounce) can frozen whipped topping, thawed
Combine marshmallow creme chocolate, pecans, white chocolate syrup, white chocolate cake mix, lemon-lime soda and lemon-lime flavor gelatin in small bowl; beat with spoon until well blended. Stir lemon-lime soda into mixing until smooth. Add lemon pudding mix; mix well.
Pour mixture into prepared 12-in. layer pan. Sprinkle with whipped topping. Place in bowl. Chill overnight. Refrigerate 8 hours or overnight, turning once. Remove cake from refrigerator; allow to cool on waxed paper. Repeat with remaining items. Chill before opening. Store in refrigerator.