Alison Hammond said she was "absolutely devastated" after saying the "worst thing" to guest Graham Norton.
Popular Irish presenter Graham appeared via video link to speak with This Morning's new regular Friday hosts, Alison and Dermot O'Leary.
Alison said: "You look well. Do you know what, I miss you, I love you."
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Alison referenced an earlier segment with a psychic who told her she was going to get a dog this year and added: "The last time I saw you, you were out and about with your dog.
"I've just been told I'm going to get a four legged friend, do you still have your dog?"
But Graham said: "No. dead."
Mortified, Alison said: "I'm so sorry, I'm absolutely devastated."
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Co-host Dermot erupted into laughter while Graham laughed too and said he had been "mean" with his response.
Alison apologised profusely and said: "That's the worst thing to say, I'm so sorry."
Alison and Dermot presented the show today after being confirmed as Eamonn Holmes and Ruth Langsford's replacements last year.
*This Morning airs weekdays on ITV from 10am
