Sarah Harding: Cheryl pays tribute to 'stunning, unique' Girls Aloud bandmate

Cheryl has paid tribute to former Girls Aloud bandmate Sarah Harding, who died on Sunday after battling breast cancer.

In an Instagram post, the 38-year-old said: "Although we knew this day would arrive I am somehow still feeling at a loss for words that our stunning, unique, crazy, quirky, kind and soft-hearted girl has departed.

"As I try to navigate my way through these painfully strange and horribly unfamiliar waves of disbelief & finality I am experiencing, I wanted to extend my condolences to all of our GA fans.

"We were like an extended family for so long and we know so many of you by name.

"I wanted to make sure you knew just how much your love and continued support meant to Sarah through her most vulnerable times.

"She was so grateful and you really lifted her spirits when she needed you most. I also realise so many will be deeply affected by the circumstances of Sarah's passing… I am sending you all so much love I love you Sarah… farewell.

"Sarah Nicole Harding forever in our hearts".

The other former members of Girls Aloud - Kimberley Walsh, Nadine Coyle and Nicola Roberts - have also paid tribute to Harding, whose death at 39 was confirmed on Sunday by her mother.