ADD boiling water to jelly powders in medium bowl; stir 2 min. until completely dissolved. Reserve 2 Tbsp. orange juice for later use. Add remaining juice and ice to jelly; stir until ice is melted. Refrigerate 10 min. or until slightly thickened.

WHISK in Cool Whip and zest; pour into 9x5-inch loaf pan sprayed with cooking spray. Refrigerate 3 hours or until firm. Unmold just before serving.

ADD reserved orange juice to blender with remaining ingredients; blend until smooth. Spoon over individual servings of dessert.