Maisie Williams and Sophie Turner take the best friendship in the Seven Kingdoms on the road in a brand new teaser for James Corden's Carpool Karaoke series.

Game of Thrones' Stark sisters might be feuding on screen, but it looks like they had an absolute blast belting out Justin Bieber's 'Sorry' and Miley Cyrus's banger 'Wrecking Ball' on the Apple Music show. Join in on the fun below:

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When they're not pulling diva faces and gesticulating wildly, the sisters put the scheming they learned from King Joffrey to good work while pulling an epic prank on Game of Thrones fans.

If you're ever visiting one of the HBO and Sky Atlantic fantasy drama's pop-up attractions, keep an eye out for Maisie and Sophie lurking in the shadows to give you a shock.

The on-screen siblings aren't the only ones having fun behind the wheel. John Legend and Alicia Keys are on this week's Carpool Karaoke — watch a teaser below:

Along with the Game of Thrones-themed edition, Carpool Karaoke will also feature Seth MacFarlane and Ariana Grande singing Ariana's greatest hits beginning next Tuesday (August 22).

Maisie Williams and Sophie Turner's Carpool Karaoke special will also be available next Tuesday exclusively on Apple Music, whereas Game of Thrones continues on Sunday (20 August) on HBO in the US, simulcast in the early hours of Monday morning (21 August) on Sky Atlantic in the UK.

Watch a trailer for this weekend's episode below:

preview for Game of Thrones season 7 episode 6 trailer – 'Death Is the Enemy'

From: Digital Spy