Kimberely Walsh has paid an emotional tribute to Girls Aloud and late band member Sarah Harding on the band's 20-year anniversary.
The pop group, also consisting of Cheryl Cole, Nicola Roberts and Nadine Coyle, was formed in 2002 on ITV show Popstars: The Rivals. They've enjoyed huge commercial success, releasing five studio albums and embarking on six UK and Ireland tours.
Kimberley shared a series of photos of the girls from over the years with her 773,000 Instagram followers. Pictures included the bandmates performing on stage, at a book signing event and on red carpets.