Angela Scanlon was a big hit with viewers of The One Show as she joined Matt Baker on the sofa.
The Irish presenter stood in for Alex Jones, practising her skills ahead of her debut as the new Robot Wars co-host.
Alex, who has been a One Show presenter since 2010, was unavailable as she was on her way to Cornwall for the following day's episode - but Angela was on hand to step in.
The show started with an odd one out round between the Manic Street Preachers, the cast of Whose Line is it Anyway?, the Governor of the Bank of England, and Alex Jones. The answer was Alex - because she wasn't on the show.
Angela, who will co-present the revived Robot Wars with Dara O Briain when it returns later this year, was a big hit with viewers.
Some even felt she should replace Alex for good...
But she was just keeping the seat warm.