Cheryl Tweedy has described feeling 'devastated' after hearing the news that her fellow bandmate's cancer diagnosis was terminal.
Sarah Harding tragically passed away last September at just 39-years-of-age, following a year-long battle with breast cancer.
Cheryl, 39, will now join her bandmates Kimberley Walsh, Nicola Roberts and Nadine Coyle to take part in a Race For Life in London's Hyde Park on July 24, in memory of their good friend and fellow Girls Aloud singer.