Did Game of Thrones offer a spoiler with "Jenny's Song"?

TIME

Fans of the George R.R. Martin books quickly recognized the song as soon as Podrick Payne began singing it in Sunday's episode. Producers got Florence + the Machine to sing the same song, "Jenny of Oldstones," over the closing credits. “We’ve always been huge fans of Florence’s music, and the season 2 trailer with her song ‘Seven Devils’ was possibly the most powerful we’ve ever had,” David Benioff and D.B. Weiss said in a statement. “So the opportunity to hear her otherworldly voice on our show was always at the forefront of our minds. We’re still pleasantly shocked that she agreed to sing ‘Jenny of Oldstones,’ and we’re in love with the result.”