The 7-year-old boy battling for brain tumour awareness
Last year, seven-year-old Ravi was devastatingly diagnosed with a brain tumour, which meant he had to undergo 10 hours of gruelling surgery.
After learning to walk and feed himself again following the operation, Ravi became determined to help other children going through the same ordeal. And exactly one year on from the surgery, he's teamed up with some very big stars - including Bastille, Coldplay and Paloma Faith - to release his very own charity single. Ravi is joining us in the studio with his dad Gbenga.