Sarah announced today (7 November) that she will be appearing on X Factor's spin-off show The Xtra Factor, meaning she can hang out with Chezza backstage.
The singers were in Girls Aloud for 10 years before the pop group split in March 2013, and it seems Sarah is keen to meet up with her former bandmate.
Taking to Twitter, Sarah said: "Pleased to announce I will be appearing on the @ITV @XtraFactor tomorrow nite, @CherylOfficial be good to catch up chick, good luck!"
Cheryl is yet to respond to Sarah's message, however the girls' fans have been whipped into a frenzy at the news!
One follower replied: "SARYL REUNION!" Another added: "Can't wait to see! Saryl selfie please!!"
It's a big night for Cheryl tomorrow, as she has just one act remaining in the singing competition. Stephanie Nala, Chloe-Jasmine Whichello and Lola Saunders have already been chopped, leaving just Lauren Platt in the Girls' category.
However, it appears Lauren has been feeling under the weather this week, as she has retweeted a Cheryl fan who posted: "URGENT: despite how talented and beautiful @laurenplatt7 is, she's been badly ill! Us #Soldiers and #Platters vote, don't let her down!"
Who are you rooting for in this year's X Factor? Tell us below, as the best comment from across the website each week wins £50.