Joe Jonas Knows How 'Game of Thrones' Ends But He Cannot Tell You

Joe Jonas knows who ends up on the Iron Throne but he is more than just sworn to secrecy — he signed a legally binding contract to remain silent.

"Game of Thrones" stars Maisie Williams and Sophie Turner were guests on "Good Morning America" on Tuesday to promote the final season of the hit show.

Turner revealed that her fiancé was on set for a lot of the filming of the upcoming season and was able to piece together how it all ends. But with great privilege comes great responsibility.

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"He was on set for most of it, so he kind of figured it out," Turner told Michael Strahan. "He had to sign an NDA."

She added, "He had to have full photo approval on set, his camera was covered up, everything."

Turner joked that Jonas was terrible at keeping secrets and if you ask him what happens "he’ll probably tell you everything."

The final season of "Game of Thrones" premieres on April 14.

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