The presenter quizzed guest Graham Norton about his dead dog.
Former Big Brother contestant Hammond tripped up during an interview with Graham Norton.
The chat show host will make his debut as a weekend presenter on Saturday.
The presenter quit BBC Radio 2 last year and signed on with Virgin Radio.
The presenter has left Radio 2 to join Virgin Radio.
The astronaut appears on The Graham Norton Show.
Strictly Come Dancing presenter Claudia Winkleman will Graham Norton after he leaves his Saturday morning BBC Radio 2 show
Graham Norton has announced he is 'excited' to be joining Virgin Radio after he leaves BBC Radio 2
The TV and radio presenter topped a list by cybersecurity firm McAfee, ahead of Ricky Gervais and Tom Hardy.
The chat show host says the story stemmed from a 'throwaway comment' to a journalist.
The 57-year-old chatshow host says comparing a same-sex couple with other contestants will 'muddy the waters for the judges'.
The talk show host was attacked in 1989.
The Ant-Man actor remembered his time on the iconic sitcom.
The comedian resigned as agony aunt for the newspaper after 12 years and has now revealed it was because he disagreed with the Telegraph's rightwing political stance.
The BBC chat show host has challenged ITV to publish their top earning stars' salaries.
The actor made the revelation on The Graham Norton show
The BBC chat show host 'lost over half his blood' in the vicious attack in 1989.
The 56-year-old comedian would like to reduce the number of chat shows he makes in a year, in order to pursue other projects.
Pigeon racing, pottery and pet portraits – some A-listers have rather unusual hidden talents
Graham Norton earns more than Gary Lineker but is paid through his independent production company.
The BBC has published the salaries of its top-earning talent for 2018-19, revealing a glaring pay gap between men and women still exists. And despite quitting his BBC Radio 2 breakfast show this year, Chris Evans is still riding high at the top of the list.Here are the top 10.
The actress says the jibe came at her lowest point.
She wants the kind of experience she can't have in a stadium or sports arena
The TV presenter made the telling comments on his Saturday radio show
Norton will miss his first ever show as he'll be in Tel Aviv to cover the 2019 Eurovision Song Contest.