In a large bowl mix the frozen juice, the pineapple juice, and 2 cups of vodka

Take the empty can of frozen juice and put 3 cabs of water in a small pot

Add the sugar to the pot and bring to just a boil

Heat the sugar and water just enough to dissolve the sugar

Add the water from the pot to the juice in the large bowl

Put the bowl in the freezer

Let the bowl freeze for about 8-12 hours

Because the juice has vodka in it, it will take a long time to freeze

Cut a hole in the middle of the juice and mix in the cherries

If you try to mix the cherries in too soon, they will all sink to the bottom. Try to see when the juice has solidified a little to keep the cherries from sinking

put back in the freezer for a few more hours or until it freezes and serve