1 (46 fluid ounce) can pineapple juice
1 (32 fluid ounce) bottle pina colada drink mix
16 fluid ounces vodka
1 (12 fluid ounce) can frozen lemonade concentrate
Pour pineapple juice into a large container. Add pina colada drink mix. Fill the empty bottle halfway with vodka and pour in. Stir in frozen lemonade concentrate.
Freeze, stirring every 2 hours, until pineapple juice mixture is a slushy consistency, 4 to 6 hours.