The girl group will release a 10th anniversary greatest hits collection titled Ten on November 26, which will be preceded by lead single 'Something New'.
However, the five-piece have now confirmed that a second new track from the collection will be released as a single.
"Having so much fun putting together our TV performances. There will be Something old , something new and our 2nd single," the band tweeted this afternoon (October 24).
Girls Aloud will release 'Something New' as this year's Children In Need single and will perform the song for the first time during the charity telethon on November 16.
The track will then be available to download in the UK on November 18.
Kimberley Walsh recently admitted that Girls Aloud will never split up, but explained that they will still each pursue solo projects.
Watch the music video for Girls Aloud's new single 'Something New' below: