It’s finally here! A new episode of Game of Thrones! No more guesses pieced together from bits of trailers and photos. But that also means that this spoiler warning should be taken a bit more seriously. This post contains frank discussion of the Game of Thrones Season 7 premiere, titled “Dragonstone.” If you haven’t watched yet, now’s the time to leave. Seriously, we mean it.

Thanks to an official announcement at SXSW earlier this year, it was no surprise that Ed Sheeran popped up in a cameo on Game of Thrones. But not everyone knew to look for him as early as the Season 7 premiere. Though Sheeran himself tried to downplay his appearance earlier this year in a conversation with Entertainment Tonight—“It’s decent. I like it. Nothing exciting happens in this scene; we just have a conversation and that’s kind of it”—the truth is Sheeran’s character does something rather monumental here. Not only is he a bona-fide Grammy winner performing in the world of Westeros, but we finally (finally) have a new Game of Thrones song to add to the rather short list of “The Rains of Castamere,” “The Bear and the Maiden Fair,” and “The Dornishman’s Wife.”

When Maisie Williams’s character, Arya, compliments Sheeran’s Lannister soldier on his song, Ed replies, “it’s new”—perhaps as a joking reference to the way “Rains” has been played over and over and over on the series. Sheeran’s song, “Hands of Gold,” has an added layer of significance for book readers.

The song is lifted straight from the books and the lyrics read: