The former glamour model, headed for a day at the races with a small group of friends and her husband Kieran Hayler.
Katie, 36, uploaded pictures of her day out onto her Instagram page, including one of her cuddling up with her mates and the Duchess of Cornwall (how bizarre).
The pair looked like they were having a grand old time as they posed for the camera.
Mum of five Katie also shared an intimate snap of her and Kieran as they set off for the day.
In an interview earlier this week, Katie – who exposed Kieran’s affair with her former best friend Jane Pountney back in May 2014 – spoke out about Jane again after she renewed her wedding vows to Kieran.
Speaking to OK! magazine, Katie said: “I know Derrick and Jane are divorcing. Whatever she did I will never forgive her, and I’m just glad her life is ruined.” She continued: “It’s weird, Derrick and I have never been angry at Kieran, it’s more Jane we’re shocked by. I think it’s because she’d dramatically changed.
“I suppose we didn’t know Kieran as well as Jane – I married him after five weeks. But we’d known Jane for 20 years. I think that’s why there’s more bad taste about Jane. And she hasn’t got an illness like Kieran.”
Katie also revealed she is still close to Derrick, adding: “The weird thing is, Derrick actually watched the CBB final at my dad’s house with my mum and dad, and they were all voting for me to win.”