The telly star, 37, set pulses racing in a Topshop polkadot dress that was slit to her thigh.
She also wore matching pink stilettos, which she showed off when she and co-host Phillip Schofield stepped outside their West London studios.
And viewers at home seemed impressed with Holly's look.
One wrote on Twitter: "Holly's dress is on fleek! A real style icon! And of course… Phillip too."
Another wrote on Instagram: "Gorgeous Lady!"
A third wrote: "OMG I want this dress!"
Holly also posted a photo of her outfit – which came from Topshop – on Instagram.
She wrote: "Morning Thursday… today’s look on @thismorning dress by @topshop shoes by @gianvitorossi #hwstyle."
Meanwhile, Holly has revealed she is taking her kids out of school so they can be with her in Australia as she films I'm a Celebrity… Get Me Out of Here!
She is set to replace Ant McPartlin later this year when the popular series returns.
She will stand alongside long-term pal Declan Donnelly while Ant continues his recovery from drug addiction.
Speaking for the first time about her new job, Holly said she has spent the summer organising the "logistics" of her move Down Under.
She said: "When I first found out, it's obviously bitter sweet, but it was exciting.
"You try and work out when you'll go and how long for.
"The kids are coming with me so I've been speaking with the school seeing how that's all going to work.
"Dan's coming with me, then all of a sudden that's it.
"Logistics are all sorted and you go oh, there's going to be spiders and stuff."
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