Carpool Karaoke - Maisie 
Credit: Amy E. Price/Getty

Sophie Turner and Maisie Williams’s on-screen relationship in Game of Thrones looks like it’s heading south, thanks to the interference of Littlefinger, but off-screen, they couldn’t be closer. Need proof? Just check out the new teaser for their upcoming episode of Carpool Karaoke on Apple Music, where the BFFs sing Justin Bieber and Miley Cyrus.

While Turner belting out “Wrecking Ball” is not to be missed, the best part of the episode might just be the Stark sisters sneaking up on some unsuspecting Game of Thrones fans. “They’re the most loyal fans in the world and I think we should go surprise them,” Turner says before hiding under a blanket in a GoT exhibit and popping up to surprise some lucky visitors.

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Apple also released the teaser for Ariana Grande and Seth MacFarlane’s episode of Carpool Karaoke, where the two show off their pipes and even attempt to play instruments while driving.

Carpool Karaoke: The Series is available now on Apple Music, with new episodes being released each week.