2 (12 oz.) can pineapple juice
1 (6 oz.) frozen orange juice concentrate thawed
1 (6 oz.) frozen lemonade concentrate thawed
4 c. water

Chill thoroughly. Just before serving put mixture in punch bowl. Pour 2 4/5 quarts chilled champagne down side of bowl. Stir gently. Trim with orange slices, strawberries, lemon slices or whatever.