James Corden's Carpool Karaoke reached new heights of surreality this week as the First Lady of the United States of America Michelle Obama joined him for the latest viral-gold instalment of his good-natured singalong. 

'Mo' was seen surprising Corden for a 'tour' of the White House before performing a rendition of Beyoncé's 'Single Ladies' and later being joined by Missy Elliott in the back seat.

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Bear Grylls//Digital Spy

Watch the episode in full below.

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From: ELLE US