The 35-year-old singer shot to fame after winning a place in the band on reality show "Popstar: The Rivals" alongside Cheryl, Nadine Coyle, Kimberley Walsh and Nicola Roberts 15 years ago.
Though Harding says it is unlikely the group will get back together again, she'd jump at the chance of a reunion, reported OK! magazine.
"I get really nostalgic when I think about being in Girls Aloud. I found a CD of our Radio One Live Lounge performances the other day and it was so nice to listen back and hear us all bantering with each other. I really miss performing with the girls on stage.
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