By IONA KIRBY

Girls Aloud posted their first reunion picture on Twitter. Front-back: Nicola Roberts, Cheryl Cole, Sarah Harding, Kimberley Walsh

Girls Aloud may have put their group on the back burner for a while, but last night they teased their fans by posting a mysterious photograph on Twitter.

Four girls can be seen in a mirror, but each of their faces is covered by a mobile phone.

However on closer inspection it is clear that the girls in the picture are Nicola Roberts, Cheryl Cole, Sarah Harding and Kimberley Walsh.

The picture was posted by Nicola and Cheryl, who are the only two girls with official Twitter accounts.

Nicola, 25, was first to send the photo to her site last night along with the message: 'Girls night in.. x'
And Cheryl, 28, quickly followed suit with her posting, which had the caption: 'Love my girlies <3'


Girls night in: There was no sign of bandmate Nadine Coyle

The picture adds fuel to the rumours that a Girls Aloud reformation is imminent, but one member was noticeably absent.
Nadine Coyle has spoken about a band reunion, however last night she either declined to join the girls in their slumber party or was not invited.
It is expected that the girls reunion performance will take place at next year's Olympics.


Twitter teasing: Cheryl Cole (L) and Nicola Roberts both posted the photo to their Twitter accounts

The picture appeared to tell a different story, and its mysteriousness suggests the girls may have been meeting to discuss the next step for the band.
While they are each embarking on separate solo projects, it has always been clear that the girls will reunite at some point.
Nicola is currently forging a successful music career and is about to release the third song from her debut solo album.


Reunion: Sarah Harding (L) and Kimberley Walsh have both turned their hands to acting

Meanwhile the other girls have decided to turn their hands to acting.
Sarah Harding, 29, who recently split with her DJ fiance Tom Crae, has recently finished filming her first major movie role in Run For Your Wife.
Former X Factor judge Cheryl meanwhile will make a cameo appearance in upcoming Hollywood rom com What To Expect When You're Expecting.
And Kimberley Walsh, 29, has just played the role of Prissy Polly in Horrid Henry.


When there were five: Nadine Coyle (L) has barely spoken to her bandmates since their hiatus

source :dailymail