The 'Threads' singer misses the closeness of being a part of Girls Aloud, though she no longer feels as strong a bond with her former bandmates.
She said: ''I perform with another all-girl band now because I miss Girls Aloud.
''Cheryl [Fernandez-Versini] and Kimberley [Walsh] are the only ones I've spoken to in the past few months.
''I saw Nadine [Coyle] and her baby last year but I haven't even heard from Nicola at all. She's not bothered, so God knows what's gone on.''
While she may not see the rest of the group - who formed in 20202 and disbanded in 2013 - very often, the 33-year-old singer is definitely up for a Girls Aloud reunion in the future.
She told Closer magazine: ''Look at the Spice Girls doing the Olympics three years ago. It could happen. Maybe we could do something for the 20th anniversary like the Spice Girls are rumoured to be doing.''
Sarah recently admitted she loves watching old footage of Girls Aloud on YouTube in her spare time.
She said: ''I loved doing 'Off the Record' in 2006 with the girls, it's nice to have things to look back on and reminisce about.
''It would be great to be able to show the grandkids all the amazing things you've achieved.
''It's such a giggle to watch us in the band when we're so young - sometime I YouTube the show for a laugh.''
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