Lemon Louie Smoothie

2 C. lemonade
1 C. lemon yogurt
1-1/2 C. frozen pineapple chunks
1 C. pineapple sherbert

Pour all liquid ingredients into smoothie maker or blender.  Add all frozen ingredients.  Blend at Low/Dispense setting for 30 seconds, then blend on High until smooth.  Serve immediately.