But the reality star-turned-fashionista reminded us of her old look today (31 October) while sharing a throwback picture of herself.
In the snap, Lydia is rocking some seriously blonde hair as she relaxes in the back of a swanky car.
It was clearly quite an occasion too because Lydia was dressed in a gorgeous cream frock, which she teamed with a mega pair of nude Louboutins and a giant flower fascinator.
Lydia shared the picture on Twitter, simply saying: "Throwback Thursday."
Earlier this week, Lydia - who has been a brunette hair since March - went even darker when she dyed her hair almost black.
She recently told Reveal that she "looked horrendous" when she first appeared in TOWIE, as she didn't know how to do her hair and make-up!
Lydia added: "I experiment a lot more with my eye and lip colours now that I've dyed my hair darker.
"When I was blonde I would only wear a red lip, but now I wear hot pinks, baby pinks and corals."