Daytime TV
Viewers were left rather confused when the regular broadcast was interrupted.
This Morning host Alison Hammond won praise over her handling of the "uncomfortable" exchange.
“I no longer watch it, and won’t appear on there to talk about my book."
"I wouldn't put me or you through that..."
And the presenter got in on the fun herself, too.
The former MP told the Pop Idol star he'd "inspired" him to speak publicly about his own stammer.
"Cat is like a breath of fresh air..."
The famous blue sofa will welcome a new face next week, alongside Rylan Clark and Craig Doyle.
"I am so happy to be here, I feel like I have missed so much."
TV producer and campaigner Hannah died after being diagnosed with breast cancer for the second time.