In a blender container combine undrained pineapple, frozen juice concentrate, and cream of coconut. Cover and blend until smooth. With blender running, add ice cubes, 1 at a time, through opening in lid. Blend until the pineapple mixture is slushy.
Add carbonated beverage to container and stir gently. Pour into glasses. Makes 6 or 7 (6-ounce) servings.