Hundreds of people turned out to support Radio City's Give Blood day.

Rossie kicked off the registration session in the Tower by signing up to support families like Mandy Hayhoe's.

Mandy's son Jack is just 11 months old and likely to die before he's 10 years old unless a bone marrow transplant can be found.

Rossie's pledged his support (pictures here) and you can help too. Visit www.blood.co.uk or call 08457 711 711 for details.

Thanks to everyone who supported our Give Blood day.

Read more about Jack's story here...

Thanks for letting me on the show this morning.
 
My son Jack (pictured) is 11 months old and has been diagnosed recently with having Wiskott Aldrich Syndrome, a very rare immune deficiency syndrome, which affects only 1 in 4 million births.
 
The symptoms of the syndrome are an inability to fight infection, internal bleeding caused by a low platelet count and eczema. Jack is currently under the care of Alder Hey Children’s Hospital and has been admitted on numerous occasions.
 
He regularly requires platelet transfusions and is now on the waiting list to have a bone marrow transplant.
 
Jack's only cure is to have the bone marrow transplant, however if a match is not found we have been told by doctors that he will die before he reaches 10 years of age.
 
My husband and I would like to ask Radio City to make an appeal to its listeners for platelet and/or bone marrow donors to help Jack and others like him.
 
Platelets have a very short shelf life of only 4-5 days so it is crucial that people donate regularly. Jack has already received six transfusions and so far we have been very lucky that the platelets have been there for him.

One day though our fear is that we will be told there are none available for him.
 
If you could help, I would be very, very grateful.
 
Mandy Hayhoe