The former TOWIE star turned heads in a figure-hugging pencil skirt and teeny tiny crop top while promoting her book in London on Tuesday (13 January).
She said: "I'm probably the happiest and most content I've ever been, but I've had to work really hard on my body and on my confidence to get here. This book is my personal journey, but it's also a diet and lifestyle plan that will help you transform your body and live a long, strong, healthy and happy life."
Be Body Beautiful, published by Penguin, contains Lucy's six-week diet and fitness plan and aims to provide a "lasting lifestyle-based approach" to health and nutrition.
The publisher claims: "Be Body Beautiful tells of Lucy's rollercoaster last few years and how she learned to take control of her body and her life. For anyone who wants to transform themselves for good, this book will be a life changing read."
Since leaving the ITVBe show, the beautiful brunette has gone on to make quite a name for herself in the fitness industry thanks to her Results With Lucy online venture which offers healthy eating and exercise tips.
She's also landed a fitness advice slot on The Cosmo Body Show.
Oh, and if all that isn't enough, she also runs BootyCamps across the UK where people can come along and get health and wellbeing advice from Lucy in person.
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