Living it up with her fellow The Only Way is Essex stars in Las Vegas, Sam posed with Jessica Wright on Sunday wearing what can only be described as the current hairstyle du jour!
And with Cher Lloyd wearing a similar look in Vegas a few weeks ago and Cheryl Cole doing a fabulously tousled bun at her bezzie mate and former bandmate Kimberley Walsh's book launch last week, we predict a big trend in the making.
In fact the bigger the better, some might say, as the key to this look is making sure your topknot is rather large, as well as being a bit messy around the edges!
To get the look, fix your hair into a high ponytail, then backcomb it to create plenty of volume, before spinning it around into a bun and pinning with grips.
If your hair is on the short or thin side, however, you might need a little help from a clip-in friend!
So your best bet is to try Lauren Pope's fabulous range of clip-in hair pieces as she has one that's already set into a messy bun for you, the Clip-in Bun, £17.99, hairrehablondon.com.
Simply scoop your hair up into a topknot, then grip one of these babies over the top of your slightly less impressive one.
Available in a whopping 9 colours you'll easily find one to match your natural hair colour, so no-one will ever know the difference. Ha!
What do you think of the messy topknot? Is it a trend you'll be wearing this autumn? Let us know your thoughts below. Our fave comment across the site each week wins £50!