A teenager who has a special bond with her young brother performed a heartwarming dance routine to raise awareness for Down syndrome.

Genna, 14, and her four-year-old brother Jaxon, who has Down syndrome, performed a singalong and dance routine to "This Is Me" from the hit musical "The Greatest Showman."

Footage captured at a home in Milton Keynes on August 15 shows the siblings dancing together.

Their mother, Lorraine Buckmaster, uploaded the video to Jaxon's Facebook page – and it quickly went viral.

She told Newsflare: "We were just messing around on Wednesday evening and I picked up my phone and captured this.

"I Uploaded it to Jaxon’s Facebook page, 'Jaxon Rio Buckmaster Life’s ups and Down’s', and it went crazy.

"It’s been viewed over 13k times now and shared 160 times."

Buckmaster says she shared the clip to raise awareness over the condition.

"I love to show off their relationship to show the world Down syndrome isn’t the scary thing doctors would have you believe when you get the news your unborn baby is likely to be born with it," she said.

The mother-of-five adds that Genna and Jaxon have a special relationship.

"Every night, Genna tells Jaxon she loves him and he’s one of the best things to ever happen to her," she said.

We were part of the viral video a Thousand Years 50 Mums 50 Kids
Since then Genna has been signing loads with Jaxon.
This was just a short film I did the other night. Captured the love. Already viewed 10k times from his Facebook page