Users can transform their heads into a giant sprout via the interactive AR overlay. The musical lens also plays the original festive composition featured in the grocers TV ad, encouraging Snapchatters to belt out the tune.
The brand is launching the #SingSprout 'karaoke' filter to coincide with the screening of the X-Factor on Saturday (2 December), with the push running for 24 hours only.
The song, which was penned by comedian Doc Brown, sits at the heart of Sainsbury's 2017 campaign, it celebrates all the quirky nuances of a British Chrsitmas from pigs in blankets and roast potatoes to ripped paper hats.
The Snapchat push was devised by AnalogFolk, with Simon Richings, creative partner at the agency saying: “Christmas means lots of different things to lots of different people. We saw an opportunity to really bridge these divisions and bring people together - by turning everyone’s head into a sprout.”
Sainsbury's has been funneling investment into Snapchat this year, most recently shooting an 115-degree ad using Snapchat Spectacles.
Last Christmas it ran a similar karaoke push on Snapchat to promote its James Corden-fronted festive ad.