The stills from the music video for React show the popstars dressed in skimpy PVC outfits.
They met during the 2018 series of Strictly.
The band reunited on stage on The X Factor after a 10-year break in November.
Viewers have speculated the Pussycat Doll is behind the Daisy mask.
The girl group were back on stage for The X Factor: Celebrity's final – but some viewers had forgotten what they were about.
Nicole Scherzinger, Ashley Roberts and Kimberly Wyatt are among those returning.