Video goes viral: mums' Down's syndrome doing carpool karaoke

To help mark World Down syndrome Day (March 21) a group of mums joined forces and created a video celebrating children with Down’s syndrome. The mothers are members of a Facebook group called Designer Genes, for parents with children with Down’s syndrome born in the years 2013 and 2014.

It shows 50 families from across the UK using Makaton — a form of sign language that also uses symbols and speech to aid communication — to follow Christina Perri’s hit A Thousand Years.

The heartfelt video - titled “50 Mums, 50 Kids, 1 Extra Chromosome” - has gone viral and been seen 1.8 million times on YouTube and three million on Facebook. It's accompanied by the hashtag #wouldntchangeathing.