The blonde bombshell, 39, dressed to impress for her latest television appearance alongside this Morning co-star Phillip Schofield.
Opting for another summer dress, Holly's look featured a floral print dress in red and green colours.
Holly took to Instagram to show off the dress before going on-screen.
She was seen taking a cheeky selfie as she showed off the ensemble.
The outfit was cliched in at the was it and fell to a midi length, showing off Holly's pins.
The dress also featured three-quarter sleeves and tie details at the neck.
Holly completed her look with a pair of nude stilettos.
Unsurprisingly, the mother of three's latest social media snap turned the heads of her 6.8 million followers.
Taking to the comment section, one fan penned: "Love this dress."
A second gushed: "OMG you look stunning."
A third posted: "Beautiful dress on a beautiful lady."
A fourth agreed: "Gorgeous as ever."
Speaking after her partnership with M&S, Holly revealed the key to staying so "effortlessly stylish."
"I've got to be comfortable," she confessed.
"Gone are the days where I'll put something on and be forever tucking it in or pulling it down. I can't bear that – it drives me bananas. There is not enough time in the day to tuck yourself in 50,000 times."
She also warned her fans ‘not to get hung up on sizes’, explaining: “Sometimes you'll find that even though you're a 12, you'll put on a jumper and it will be cut big and boxy, and you might think ‘I love this, but I'm going to wear it in a 10 or an 8 and then I'm going to tuck it in."
"So, ignore sizes and just try stuff on: wear it how you want to wear it, not how the size dictates.”
Holly and Phillip chatted to Coronation Street stars Alan Halsall and Jennie McAlpine, Tyrone Hobbs and Fiz Brown, this morning about their upcoming storyline.
This Morning airs weekdays on ITV at weekdays