Watermelon Kiwi Lemonade

4 kiwifruit, peeled and cut into fourths
1 tablespoon sugar
8 cups cubed seedless watermelon
2 cans (12 ounces each) frozen lemonade concentrate
4 cups water

1.Place kiwifruit and sugar in blender. Cover and blend on medium speed just until smooth. Freeze 1 to 2 hours or until firm.
2.Place 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.
3.Pour watermelon lemonade into glasses. Spoon dollop of frozen kiwifruit on top. Serve immediately.