Ryan Lewis revealed that his mum has been HIV-positive for around thirty years.

The producer, whose work with rapper Macklemore has made him a big star, said that Julie Lewis become positive after receiving a blood transfusion in 1984.

Lewis has now launched the 30/30 Project charity project in honour of his mother, who has outlived her original prognosis.

"If I could just take a few moments of your time, I'd love to tell you about the strongest woman that I know, my mom, Julie Lewis. In 1984, my mom gave birth to my older sister, Teresa. Due to a complicated delivery, she needed a blood transfusion and at that moment, my mom had HIV-positive blood put into her body. When she was finally diagnosed, she was given only a few years to live."

He added: "To honour the 30 years my mom has been a survivor, our family is raising funds to build health centres worldwide that will stand strong for at least 30 years. We're calling it the 30/30 Project."

The project aims to create affordable healthcare around the world and their first plan is to raise $100,000 to build a health centre in the Neno District of Malawi, Africa, where one in 10 people are HIV-positive.

Watch Ryan Lewis launch his project below: