Atomic Kitten, 5ive, Blue and B*Witched are among the popstars from TV show The Big Reunion who have released a video for their Christmas charity single online.
Former hit makers Liberty X, Honeyz and 911 are also in the line-up who have come together to record their version of Wizzard's 1973 hit I Wish It Could Be Christmas Everyday.
The proceeds will go towards ITV's Text Santa campaign.
Speaking about this joint pop venture, Keavy from B*Witched said: "Back in the day we were in competition with each other; this time round we get to do one big fantastic single together."
Atomic Kitten's Liz McClarnon added: "When we started the talks for The Big Reunion this time last year, we couldn't have imagined we'd end up recording a Text Santa Christmas single.
"It's all for charity and we are so humbled to be a part of it!"
ITV's Text Santa charity appeal, which raises money and awareness for six UK-based charities, will air on Friday, December 20.