The pair are 'snug in their PJs' to nap in the air

The Little Mix girls know how to keep cosy.

Perrie Edwards and Leigh-Anne Pinnock donned some very cute onesies before jetting off on a long-haul flight to Japan earlier this week.

In a super-cute snap posted on the group’s Twitter page, Leigh-Anne, 22, wears a hooded Fair Isle all-in-one while Perrie, 20, sports a sweet panda-print outfit.

‘On the plane all snug in our pj’s! #Panda #Kawaii Japan here we come! 😀 Lerrie they captioned the snap, which sees them giving each other a big hug.

Little Mix arrived in Tokyo yesterday and were greeted by crowds of excited fans who’d made lots of colourful posters and banners for them.

Perrie, Leanne and band mates Jesy Nelson and Jade Thirlwall were pretty overwhelmed by the reaction.

‘Such a lovely welcome to Japan! Thank you Mixers! We love you! ,’ they Tweeted.

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Anna Duff