25/12/2012 17:21 GMT | Updated 22/05/2015 06:12 BST

'Very Funny And Slightly Strange!' Jamie Oliver Tweets Photo Of Family Wearing Wife Jools' New Pyjamas

'Very funny and slightly strange!' Jamie Oliver Tweets pic wearing wife Jools' new pyjamas! Jamie Oliver/Instgram

If anyone has ever doubted Jamie Oliver's love for his wife Jools, then here's the proof that he adores her – or fears her wrath! After all, what else could have persuaded him to wear these hilarious pyjamas?

The answer is commercially simple: Jools has designed the PJs for her Little Bird range at Mothercare. And although the nightwear is usually only large enough for children aged up to five years old, the pyjamas worn by Jamie, Jools and their two eldest daughters - Poppy Honey Rosie, 10, and Daisy Boo Pamela, nine - were specially customised by the brand.

Like the good husband he is, celebrity chef Jamie Tweeted a photo of the family gathering to his millions of followers. Anything to give the wife a leg up!

Taken in a cosy playroom decked out with colourful bunting and toys, the soft-focus photo resembles a family Christmas card shot, and perfectly captures the fun and happiness of the Oliver household.

Jamie took the photograph on Instagram alongside the caption: "Haha the whole family in Jools PJ's ...I can't believe Mothercare actually made me a pair of her toddler Jim-Jams !! Very funny if not slightly strange. Although one little purple princes had hers in the wash & wasn't very happy bless her .......big love to all you guys #jamie x x. X x xx x x. Xx x. X xx x x x x."

The couple's youngest child and only son, two-year-old Buddy Bear Maurice is also wearing the pyjamas in the photo, but youngest daughter Petal Blossom Rainbow, three, is wearing a bright purple party dress and crown, because her pyjamas were in the wash.

Mother-of-four Jools Oliver, 37, designed the Little Bird line for Mothercare in August, aiming to create an 'eclectic and affordable' collection of classic clothes, toys and bedding suitable for babies and children up to five years old.

The Little Bird By Jools jersey rainbow pyjamas are usually suitable for babies children up to five years old and cost £12-£14.

During the launch, on the Mothercare website, Jools said about the pyjamas: "These are my absolute favourite! I love rainbows and stripes, wish they came in my size!"