Prepare cake mix as directed and bake in a 9x13 pan. Let cool for an hour.
Poke holes into the cake with the end of a knife or wooden spoon at 1 inch intervals.
Prepare jell-o’s separately as directed on box (but only add ½ cup cold water after adding jello mix to the 1 cup boiling water). Pour jello into a two tall glasses. Using a straw, fill it with the liquid JELLO and place in every other hole in the cake. Do this with both the red and blue jello.
Chill 3 to 4 hours and top with whipped cream and Pop Rocks. Refrigerate until ready to serve.
