Kate, 51, was joined Ben Shephard to present Good Morning Britain and the latter was determined to reveal Kate’s secret before Richard, 49, joined them.
Ben told ITV viewers: “You know I’m suspicious of Kate’s hair,” to which Kate could be heard voicing her distain to what the presenter was going to reveal.
The presenter continued: “Kate has just told me a story, she has never told before and I’m going to insist she has to tell us."
But before Ben could finish his sentence Kate cut him off looking rather embarrassed.
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ITV Good Morning Britain: 'No!' Kate Garraway red-faced as co-host EXPOSES secret (Image: ITV)