Game of Thrones pals Sophie Turner and Maisie Williams are to appear on Apple Music’s version of Carpool Karaoke.

No details yet of what the duo will be performing – the HBO fantasy blockbuster is not exactly noted for its tunes – but we’re betting it will be great fun.

At least, Williams and Turner may be able to call on some help from Ed Sheeran, who will have a cameo on the show in the upcoming season. GoT show runner David Benioff revealed the news at a panel at SXSW in Austin, Texas; Williams is apparently a big Sheeran fan and the producers have been trying for years to surprise her with a guest appearance from the ginger superstar.

The gals also took part in the panel and even found time out to surprise fans at HBO’s interactive The Escape room (see picture above).