Watch: Did Sarah Harding sign up for Girls Aloud tour before her death?
Nadine Coyle believes Girls Aloud could reunite as a four-piece in order to mark the band's 20th anniversary and honour their late bandmate Sarah Harding.
Coyle told the Mirror that some form of reunion could be on the cards for next year, speaking in the week of what would've been Harding's 40th birthday.
Harding passed away in September after a struggle with breast cancer which included a masectomy as well as chemotherapy.
Coyle said: "This last year or two has shown that life can change so quickly. It’s taught me life is too precious to be putting things off for the future."
The 37-year-old singer said it remains "surreal" to think of Girls Aloud existing as a four-piece after the loss of Harding, given how recently she passed away.
She added: "It is our 20th anniversary next year and it would be really nice for the fans for us to do something.
"I am so proud of everything we achieved together as a band."
Read more: Cheryl pays tribute to Sarah Harding
Coyle has often spoken of her desire to get the group back together to mark the 20th anniversary, saying last year that she hoped there could be something on the cards.
She said: "There’s been loads of conversations and people now are getting in contact, like 'what do we do?'."
Girls Aloud were first put together in 2002 as part of the ITV talent competition Popstars: The Rivals and immediately earned a Christmas number one single with Sound of the Underground.
Over the next decade, they secured a total of four number one singles and released five studio albums.
The group officially parted ways in 2013 after their final performance at Echo Arena Liverpool, shortly after releasing greatest hits compendium Ten to mark their 10th anniversary.
Coyle said in 2019 that the bandmates have not been close since their time as a group came to an end.
Watch: Nadine Coyle says Girls Aloud have put differences behind them