‘Dying to live’, BBC Three film tells Kris Hallenga's breast cancer story
25 March 2014 Last updated at 10:36 GMT
Kris Hallenga was just 23 when she was diagnosed with terminal breast cancer.
A month after her diagnosis she set up a charity called CoppaFeel! with her twin sister, Maren, to help raise awareness at schools and music festivals about the importance of early diagnosis.
Kris told BBC Breakfast about her plight to show that the disease is not something that affects only older women.
Kris: Dying to Live will be broadcast on Wednesday 26 March at 21:00 GMT on BBC Three. Or catch up later on BBC iPlayer.