The B Positive Choir is a British choir. It contains 60 singers who suffer with the sickle cell disease or who have close friends or family suffering from it. The choir is led by Colin Anderson and Lurine Cato and features members from across the UK. The choir was formed by NHS Blood and Transplant as an initiative to help raise the awareness of the disease as well as attract new donors to give blood, which is essential to treating the disease, particularly amongst black and Asian communities who the NHS feel are under-represented.