Katie Price gushed over her ''amazing'' son Harvey after he played the piano at London's Royal Festival Hall.

The 36-year-old star - who has the 12 year old with former footballer Dwight Yorke - tweeted her delight as her son, who suffers from genetic condition Prader-Willi syndrome (PWS), took to the stage to show off his musical skills at the iconic venue last night (16.03.15).

Alongside a photo of Harvey and his school friends performing in the capital, she wrote: ''proud of my Harvey tonight playing the piano at Royal Festival Hall #proudmum (sic)''

Adding in another post:''Harvey is absolutely amazing love him so much (sic)''

It comes just days after the brunette beauty appeared on ITV's 'This Morning' to talk about raising Harvey - who is on the autism spectrum, suffers from developmental problem including limited sight and a chronic feeling of hunger, because of the condition.

The mother of five - who also has Princess, nine, and Junior, seven, with ex Peter Andre and Jett, 19 months, and Bunny, six months, with her husband Kieran Hayler - spoke about Harvey's love of music and shared his favourite song, 'Skyfall' by Adele.

The 'Celebrity Big Brother' winner added that Kieran has been a great help in raising the youngster along with her mother, Amy, 62.

While sitting alongside Harvey and Amy on the show, she explained: ''Mum did it for about 11 years, she was in the car with him but Kieran is so good with him, I said to my mum, 'Look you've done this for 11 years, you have got a life as well.' It's just me and Kieran that does it now.''

She admitted Harvey is also doing really well with his reading and despite doctors warning them that his eyesight would not improve, they are thrilled he can now read without relying on braille.

Amy said: ''He doesn't have to use a braille machine which is a real bonus because we never thought he would be able to see let alone be able to read.''