The mother-of-five was snapped exiting the central London building on Wednesday afternoon (23 March) after taping the latest episode of Loose Women, where she appears as a weekly guest panelist.
While Katie, 37, was all wrapped up against the cold, Kieran, 29, bravely stepped out without a coat. Are you not freezing, Kieran?!
The couple – who live in Surrey – arrived in London last night to celebrate Kieran's birthday with dinner at exclusive restaurant Novikov followed by drinks at a glam bar.
They married in January 2013 in the Bahamas following a whirlwind romance and have two kids together: Jett, two, and Bunny, 18 months. Katie is also mum to children Junior, ten, Princess, eight, and Harvey, 13.
It was Harvey who was the subject of Loose Women today, as the panel gave viewers an update on the vile trolling the teenager had been subjected to online.
Katie had previously said she wanted to name and shame internet users who posted offensive messages about her disabled son, and even wanted some of the accused to appear on the show to explain their actions and meet Harvey.
But on today's programme, viewers were told none of the five people contacted wanted to appear.
Katie has now vowed to start campaigning against cyberbullying. "I am going to get a T-shirt made, get celebrities to wear it, do a big campaign. Something is better than nothing. I think there should be some kind of vetting to any social media so people can be tracked down."