Holly Willoughby burst into tears when a young Man City fan born with brain damage told his sister he loves her.
Little Christian Kilduff, four, who also has cerebral palsy and impaired vision, was given damning prognosis when he was born as doctors feared he’d never walk, talk or even smile.
But after a loving family from Heywood took him in and later adopted him, Chris has since defied the doctors and, thanks to his big sister Jade, he can now communicate using sign language.
And today he demonstrated he can also say some very special words.
Jade, 18, and Chris have become internet sensations after posting videos of them ‘sign singing’ to their favourite songs, such as Fix You by Coldplay.
The siblings appeared on the ITV programme earlier today - and it all got a bit emotional as Christian told his sister he loved her ‘to the moon and back’.
As tears welled up in her eyes, Holly put her hands over her face and said: "Oh my goodness me. It's amazing."
Selfless Jade explained that she has shunned going to university so she can look after her brother with her mum and dad, Diane and Neil.
Holly’s co-host Phillip Schofield then surprised the family with hospitality tickets to a Manchester City match.
They also gave Jade tickets to a spa day.
Jade told Holly and Phil the heartbreaking news that her family, who initially fostered Christian, held an adoption open day for the youngster - but no one came.
This led to them deciding to taking him in themselves.
She said: "It was a big decision in my family and to make when deciding to adopt him by we all wanted to take him on, give him a chance to grow in life and develop.
"Although the circumstances weren’t good we knew we had to help him in any way we could."
This Morning airs weekdays from 10.30am on ITV.