Stir boiling water into gelatin in medium bowl 2 minutes or until completely dissolved. Spoon in ice cream, stirring until melted and smooth. Refrigerate 10 minutes or until slightly thickened (consistency of unbeaten egg whites). Spoon into crust.

Refrigerate 3 hours or until firm. Just before serving, make jack-o-lantern face on pie with whipped topping, candy corn and licorice. Store leftover pie in refrigerator.