Code Golf: Print the entire “12 Days of Christmas” song in the fewest lines of code

Answer 1

C#:

string[] s = new string[]{
    "a partridge in a pear tree.",
    "two turtle doves, and ",
    "three french hens, ",
    "four calling birds, ",
    "five gold rings, ",
    "six geese a-laying, ",
    "seven swans a-swimming, ",
    "eight maids a-milking, ",
    "nine ladies dancing, ",
    "ten lords a-leaping, ",
    "eleven pipers piping, ",
    "twelve drummers drumming, "
    };
string t = "";
for (int x = 0; x < s.Length; x++) {
    t = s[x] + t;
    Console.Write("On the " 
      + (x + 1).ToString() 
      + (x == 0 ? "st" : (x == 1 ? "nd" : (x == 2 ? "rd" : "th"))) 
      + " day of christmas, my true love gave to me: " + t + "\n");
}

574 chars, not counting indenting. Adds some extra chars in getting the number extensions right. Can probably be improved on quite a bit, though.