Mia Billins lobbying parliament for cancer funds
A 10-year-old girl is trying to convince MPs to put more money towards brain tumour research.
Mia Billins, from Emsworth, Hampshire, is lobbying parliament for the funding. Her aunt died of a tumour in 2011.
She said she wanted MPs to "get involved and raise more money, so lots of people don't die of it - they can make them better".
Mia was chosen to be the face of Brain Tumour Research's Wear A Hat Day which takes place on 28 March.
Her picture will be used as part of a national campaign, including posters on the London Underground.
Brain Tumour Research raised more than £2.5m in 2012.
Liz Fussey, spokeswoman for the charity, said: "She sent in a lovely photo of herself wearing a hat in memory of her aunt who had passed away a few months earlier at the age of 37.
"Brain tumours are the biggest cancer killer of children and adults under 40 and this really devastates families - with children losing parents, and parents losing children, or in Mia's case a young girl losing a precious aunt."
Mia, who is a pupil at Ditcham Park School in Petersfield, said she was "excited" to be meeting MPs at the House of Commons on Tuesday.
She added: "I think it'll be scary at first."