The mother-of-five uploaded the image to her YouGossip page alongside the caption: "Make up off and just had Botox... a popstar went in the clinic after."
Katie has been quite open in the past about getting the odd bit of Botox but said on her FUBAR radio show last year that she doesn't want to go too far.
"Sometimes I've gone too far with it - my lips and my face - but I recognise that," Katie admitted.
"You don't have Botox to look younger, it's just to refresh your face. A few year ago I think I went too far with the Botox, fillers and lips. I think I've eased off it now.
"When I look back at pictures I think, 'Oh my god!'"
Katie, 36, had a busy day yesterday, starting off with taking seven-year-old daughter Princess to the Advertising Week Europe summit in London where she was speaking about her brand.
She then treated Princess - who is on Easter holidays - to lunch. After a presentation, lunch and Botox, it was back to the TV studios to film a segment for an Australian television show.
Katie Price: All you need to know in less than two minutes!
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