We don’t know how we didn’t spot it sooner. The pussybow blouses, the knotted-around-the-shoulder jumpers…
But the fact that Chung’s long been channelling the late Princess Diana only clicked into place last week, when she stepped out in New York wearing a pearlbuttoned, cream, pleated mididress (see left).
This new-season piece from dressmaker Alessandra Rich was yet another Alexa look that had Lady Di writ large. And with Chung the undisputed Pied Piper of new trends, where she goes, the rest will follow.
Prepare to welcome some Diana style to your wardrobe...
See the best of Alexa's Diana-inspired looks in the gallery below
Diana's Back In Fashion - Just Ask Alexa
Diana Sweater
It was a classic '80s trend and no one did it better than Diana. Alexa knots her sleeves with equal aplomb - and some added attitude.
Alexa Sweater
It was a classic '80s trend and no one did it better than Diana. Alexa knots her sleeves with equal aplomb - and some added attitude.
Diana black dress
The '80s style icon sure knew how to pull of the Little Black Dress with her signature flair and sophistication.
Alexa black dress
Alexa wears her LBD with killer heels, a slick of red lipstick and armfuls of Diana charm.
Diana Pink Dress
Alexa's often turned to the off-the-shoulder style which is playful and sweet. And we've seen it before on Diana - pretty in pink at Charleston Manor nearly three decades earlier.
Alexa White Dress
Alexa's Alessandra Rich dress from this season shows shades of Diana's iconic '80s style.
Alexa trousers
Alexa updates Diana's classic Sloaney favourite top tucked into jeans with flats by working it in all white for 2015.