Huh? We're still none the wiser.
Earlier this morning, the mum-of-five rocked up to the ITV Studios in London looking a little worse for wear with her blistered and chapped lips on full display.
Katie still made her way on set though, and we thought that professional make-up artists had done a great job of covering them up, until Loose Women regular Coleen Nolan told her that she looked "really rough."
This then prompted Katie to reveal the real reason behind her sore lips, or so we thought.
Talking to the rest of the panel, Katie said, "I burnt my lips on the sunbed, but they've covered it up well. I had stuff [fillers] put in my lips last Wednesday and I'm going to have some more put in tomorrow as well."
After putting her red raw lips down to sun bed burn, the star then took to Instagram to defend herself against a string of rude comments, but she mentioned that the sores were actually cold sores.
Katie captioned an unflattering pap shot of herself, "Isn't it funny paps always use weird angles to make you look weird and yes I have a cold sore wow that's big news as nobody ever gets them...d***s."
It wasn't long before Katie's fans and followers stepped in to offer their support and many sympathised with her. One wrote, "Sad people! Love you Katie," while another said, "You're probably just run down! Get some vitamins."
Sun bed burn, cold sores or both? No-one but Katie knows...
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