Pop star Jack Savoretti has launched a campaign to raise £ 460,000 for an eight-year-old girl with a rare form of bone cancer.

The star sent a message to Anna Drysdale that he would help her in every possible way.

Anna, from Chipping Norton, Oxfordshire, was diagnosed with osteosarcoma at the age of five.

Anna's parents hope to raise money so she can undergo a new immunotherapy in the US.

Video journalist Natalie Verney