So unless you've been living under a rock, you'll know that Tulisa got well and truly into the Halloween spirit, hitting the X Factor stage in a Catwoman costume, and temp judge Alex opted for glam black and silver sparkles.
Tulisa vs Alex: Saturday night's Halloween style. Photos:Rex Features
Sunday, Alexandra flew the flag in British fashion wearing Jonathan Saunders, while Tulisa kept up the spooky style theme in a haunting smoky maxi.
Tulisa vs Alex: Sunday night's Halloween style. Photos:Rex Features
So what do you think: did Alexandra make a sufficient stand-in for Kelly, stylishly speaking? Or are you praying for the return of the Rowland next week?
And also, who was the best dressed judge?
Check out all the style moments from Tulisa and Kelly (and Alex) throughout the live shows here:
Steal Tulisa's style by browsing our pick of the best black all-in-ones (cat ears optional):