Sainsbury’s has joined the battle for the nation’s hearts with their new Christmas advert.

The latest supermarket ad to hit our screens features the voice of James Corden, is scored by an Oscar winner – and will even raise money for poorly children.

Sainsbury’s has upped the ante with its three minutes and 20-second story of a dad named Dave endeavouring to juggle the chaos at Christmas.

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Animated, and accompanied by the dulcet tones of Brit talk show host Corden, the musical-style tune was written by Bret McKenzie, star of comedy Flight of the Conchords.

Bret, who won the 2012 Oscar for best original song for The Muppets, composed the tune The Greatest Gift for Christmas, which is sung by Corden.

In the story, Dave comes up with a plan to clone himself to get his work done in time for the family festivities.

Using pioneering stop frame animation, 800 tiny models of Dave’s face were used to portray the full gamut of facial expressions.

The campaign will raise cash for accommodation for the families of children being treated at Great Ormond Street Hospital.

Tim Johnson, chief executive of Great Ormond Street Hospital Children’s Charity, thanked Sainsbury’s, adding: “The money raised will enable us to help more families be together when they really need to be, by providing dedicated accommodation close to the hospital.”

He said somewhere to stay was a vital resource allowing parents and carers to be with their child within minutes, adding: “We couldn’t be happier to be involved in this campaign and hope everyone enjoys the advertisement and supports this special partnership.”

Head of broadcast communications at Sainsbury’s Sarah Kilmartin said that ‘sharing’ was a consistent theme of their adverts and it had resonated with customers.

She said supporting the Great Ormond Street charity felt like a natural extension of this, adding: “We know that the families at the hospital face more difficulties than most to spend time together as a family, at Christmas and all year round.”

Christmas Day 2016

Santa is coming in

Last year, their Mog the Cat ad notched up nearly 37m online views – with the accompanying book topping the UK best-selling book charts for four weeks.

In 2014 Sainsbury’s, which always waits until after Armistice Day to release its Christmas campaign, partnered with the Royal British Legion for an ad based on Christmas Day 1914 when British and German soldiers laid down their weapons and met on neutral territory.

The latest ad will screen on TV for the first time on Monday (November 14) at 9.15pm during ITV’s I’m a Celebrity ... Get Me Out Of Here!