CHRISTMAS SONG CHALLENGE PART 2

It's time for Christmas Song Challenge Part 2!

Here's the game: In 5 (five) of the Christmas events announcements are hidden 5 (five) very popular Christmas songs.One in each announcement. You need to find the song and post it as a comment under the picture in Facebook + your lady name!

CLUE: The second song is hidden in the Limited Christmas pet collection announcement!

Note: This title is slightly modified.

You have 3 days to find the Second song (until 21st of December). Good luck!