The Coronation Street star, who is nominated for Best Actress Award, stole the spotlight in her princess-style gown.
Her generous cleavage took centre-stage in the pale pink frock, as she went braless in the plunging number.
Lucy, 21, flashed a glimpse of her decolletage due to the sheer panel across the chest, which left very little to the imagination.
The bodice of her dress featured pretty lace and beaded detailing as well as layered tulle sleeves which highlighted her toned arms.
Her generous cleavage took centre-stage in the pale pink frock
The bodice of her dress featured pretty lace and beaded detailing
She teamed her floor-length frock with a pastel Yves Saint Laurent clutch bag and dazzling diamond drop earrings.
Her blonde locks were swept up into an elegant chignon, with a few curls left stray to frame her delicate features.
The soap star opted for lashings of mascara to highlight her dark green eyes and a slick of pink lipstick to complement her radiant complexion.
Lucy was joined at the awards by co-star Catherine Tyldesley who opted to go braless in a racy backless gown.
Catherine Tydlesley opted to go braless in a racy backless gown British Soap Awards 2016 Sat, May 28, 2016
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The British Soap Awards celebrates another year of tears, trials, tribulations and tantrums from Coronation Street, EastEnders, Emmerdale, Doctors & Hollyoaks.
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Kym Marsh also made an entrance in a demure navy gown
The blonde bombshell, 33, let her enviable curves do all of the talking in the figure-hugging number.
Her pastel frock featured a plunging halterneck that flashed a glimpse of her cleavage as she posed up a storm.
Kym Marsh also made an entrance in a demure navy gown which featured pretty beaded detailing across the bust and a thigh-high split at the front of her skirt.
The British Soap Awards will air Tuesday at 8pm on ITV.