1Place kiwifruit and sugar in blender. Cover and blend on medium speed just until smooth. Freeze 1 to 2 hours or until firm.
2Place watermelon in blender or food processor (blender will be full until blended). Cover and blend on medium speed until smooth. Place frozen lemonade concentrate and water in large pitcher. Add watermelon mixture; mix well.
3Pour watermelon lemonade into glasses. Spoon dollop of frozen kiwifruit on top. Serve immediately.