Kelly Osbourne had many of her fans scratching their heads Thursday, believing she was Kim Zolciak because it was virtually impossible to tell the two apart.

Here’s what happened … celebrity hairdresser Laura Rugetti posted a photo of Kelly on Instagram, which was the spitting image of Kim —  hair, face and all.

Talk about having an AI moment — but the only difference was Kelly’s picture was actually real and it faked out a bunch of her fans who rushed to comment on her headshot.

One wrote, “I was gonna say Kim Zolciak is doing too much.” Another said, “thought this was @kimbiermann.” And still others directly tagged Kim in their total bewilderment.

Now, we can’t be sure how all this came about … but Kelly has recently been promoting Emsculpt, which she says is the perfect body solution for tightening loose skin after rapid weight loss. In one 30-minute session, Kelly uses a device to wipe out fat cells and build muscle.

She even uploaded a video, showing herself getting the procedure with a caption that read, “Time for this mama to get lifted and toned – without lifting a finger!”

What’s interesting is Emsculpt is not only for body contouring, but there’s also another version of it for the face called Emface. And Kelly has been a major proponent of Emface, praising it on IG as “the best needle-free lift.”