This Morning star 'not sure how she's been trusted' as she's announced as Dermot O'Leary's new co-host

Sian Welby has admitted she's 'not sure how she's been trusted' to be the new co-host of This Morning after it was revealed she'll be joining Dermot O'Leary at the helm. Next week, the radio and TV star will replace Josie Gibson as the show's main presenter.

Sian will be a familiar face to viewers of the ITV daytime show as she has been hosting a number of showbiz segments on the show over recent months. She became the resident I'm A Celebrity... Get Me Out of Here commentator for the show at the end of last year and was back as recently as Wednesday (January 17) doing her own segment on the viral Stanley cups.

Shortly after her latest appearance in the ITV studio, This Morning revealed she and Dermot will be their next hosting duo. Sharing a smiling picture of the pair on Instagram, they confirmed: "Join @dermotoleary and @sianwelby next week on #ThisMorning! Tune in on Monday from 10am on ITV1, ITVX and STV."

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Sian, who also works on Capital's Breakfast show with Roman Kemp, was quick to comment on the post herself, writing: "This news is about me and even I don’t believe it," before also sharing the news to her own Instagram Story.

"Ok... not sure how I've been trusted to do this but..." she started by saying. "Next week, instead of waking you up on the @capitalofficial breakfast show, I'm gonna be sitting next to this legend doing This Morning," she added alongside the announcement post and a string of mind-blown emojis.

She then added: "Very surreal. Obviously excited but also quite nervous!! I have to say the whole team have been