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Someone call Brienne of Tarth because the Stark sisters, actresses Sophie Turner and Maisie Williams, are going to need some backup (vocals) for their Carpool Karaoke debut. 

The sisters-cum-besties, who adorably refer to themselves as “Mophie” IRL, are buckling up to venture beyond the wall for the latest version of Carpool Karaoke, aptly titled “Karaoke Is Coming.” In the teaser, Turner and Williams drive around while belting out Justin Bieber’s “Sorry” and experience an emotional journey via their passionate rendition of Miley Cyrus’s “Wrecking Ball.” 

Following their junior year of high school joyride, the besties surprise their incredibly dedicated GoT fans. And we didn't think we could possibly love Mophie even more. 

The full Carpool Karaoke episode's premiere date has not yet been announced, but it will ultimately appear on Apple Music.

RELATED: Definitive Proof ‘GoT’ Costars Maisie Williams & Sophie Turner Are the Cutest Besties IRL

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