James Corden sings on this year's Sainsburys Christmas TV advert

And it's guaranteed to get you in the festive mood.

Sainsburys have unveiled their 2016 Christmas TV ad, sound-tracked by the vocal stylings of James Corden.

Directed by award-winning Sam Fell, the three-and-a-half minute stop frame animation clip tells the story of a devoted dad Dave who comes up with a brilliant way of making sure he spends plenty of time with his family over Christmas.

Watch below - and prepare to feel warm, fuzzy and very emotional:

Awww.

The accompanying song is an original created especially for the ad, called The Greatest Gift for Christmas is Me. It was composed by Flight of the Conchords' Bret McKenzie and is sung by The Late Late Show host/Carpool Karaoke extraordinaire James Corden.

The track will be given a full release soon and could be competing for the 2016 Christmas Number 1.

The set of Sainsbury's musical advert took 16 weeks to build, 420 hours to shoot and eight weeks of post-production. The campaign will raise funds for Great Ormond Street Hospital's charity with profits from a gingerbread 'Dave' and an animation kit, available for £5, helping to fund accommodation for families near the hospital.

"The advert reflects a typical British family juggling everything they have to at Christmas time, we just hope it puts a smile on people's faces", said Sarah Kilmartin, head of Sainsbury's campaign .

The full trailer will air tonight (November 14) during I'm A Celebrity... Get Me Out Of Here! at 9.15pm.