Revealing the news with a gorgeous snap of herself, Holly told fans she was "so excited" to share it with them - but said she's not able to post pictures yet.
She wrote alongside the image of her face: "So excited to announce the launch of my new #Hollyloves edit with @marksandspencer... so many beautiful items and you can get them in store or online on the 18th July...
"There's even another jumpsuit of dreams in the mix... will post pictures when I can reveal all!"
Fans can't wait with many simply commenting: "Yay!" and others adding: "So excited."
"You had me at jumpsuit," wrote Holly's good pal and fellow presenter Kate Thornton.
There's even another jumpsuit of dreams in the mix
This is Holly's fifth edit for M&S, with the previous four being launched last year. The 15-piece collection will be available next month.
Earlier this week, Holly was left horrified after discovering fans can request a sex doll replica of her.
Jade was joined by one sex doll called 'Amelia', as she spoke about her flourishing business.
Jade revealed people can bring photos of particular people to her and they can create a replica of that person.
Holly said: "I imagine you have to check this photo isn't of someone who wouldn't want this to happen?"
Jade said: "We're very careful about that. You have to have permission to make somebody the exact lookalike of somebody.
"For instance, if somebody requested yourself," as she pointed to Holly, who pulled a face. "I couldn't make you."
Holly said: "Thank goodness for that."
Phil asked: "Have you had any requests for me?" to which Jade said: "I'm so sorry Phil, I haven't."
Jade explained that people can request dolls with different hair colour, eye colour, body shapes and even tattoos.
Jade revealed she's even had people request for a doll that looks like their dead partner.
She said: "Loneliness is a massive issue in the UK and I have lots of customers that genuinely come to me and they want a doll for comfort purposes only and I think that's fantastic.
"I'm providing comfort for somebody in their time of need."
Jade said the dolls can cost between £3000 and £5000 depending on the level of customisation.
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