The "12 Days of Christmas" is a popular English Christmas carol that dates back to the 18th century, though the exact origin is uncertain. The song follows a cumulative pattern, with each verse adding a new gift to the list. The gifts are repeated in a cumulative fashion, making it a fun and repetitive song. 

On the first day of Christmas my true love gave to thee...

1. A partridge in a pear tree
2. Two turtle doves
3. Three French hens
4. Four calling birds
5. Five golden rings
6. Six geese a-laying
7. Seven swans a-swimming
8. Eight maids a-milking
9. Nine ladies dancing
10. Ten lords a-leaping
11. Eleven pipers piping
12. Twelve drummers drumming

Each day of Christmas adds the new gift, resulting in a total of 78 gifts over the 12 days. 

Join in and sing along!