Sarah Harding's former bandmate Nadine Coyle says she's 'absolutely devastated' by the loss of the Girls Aloud star.
Nadine, who won a place in the girl band along with Sarah on the ITV talent show Popstars: The Rivals back in 2002, shared a moving post on her Instagram.
Girls Aloud was created on the show judged by Pete Waterman, Louis Walsh and Geri Halliwell.
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The group went on to score the Christmas number one that year with their debut single Sound Of The Underground.
And they went on to release five chart-topping studio albums.
"I am absolutely devastated!!" said Nadine as she sent her love to grieving fans.
"I can’t think of words that could possibly express how I feel about this girl and what she means to me!!

Fans flocked to send messages of love as they remembered the star.
"She was the most incredibly special woman. What a light for us," said one.
"Can’t imagine how you must be feeling Nadine. Sending all my love & thoughts your way," said another.
"Sending so much love. So heartbreaking," another wrote.
"I know so many of you will be feeling this way. For now I’m sending so much love to you!!!"
The group also comprised of Cheryl Tweedy, Nicola Roberts and Kimberley Walsh.
The group, who split in 2013, achieved a string of top 10 singles in the UK including four number ones and they were nominated for five Brit Awards, winning the 2009 Best Single for The Promise.
Stockport-raised Sarah, 39, revealed in August last year that she had been diagnosed with breast cancer which had spread to other parts of her body.
Today her mother Marie announced her death on Instagram and described her “beautiful” daughter as “a bright shining star."