Dressed to kill! Lily Collins turns heads as she shows some skin in sexy backless gown at gala in LA 

Lily Collins was a picture of sophisticated glamour as she attended the GO Campaign Gala in Los Angeles on Saturday night.

The 27-year-old was ready to stop people in their tracks as she wowed in a beautiful floor length black dress that also clung to her super toned physique.

The starlet showed plenty of skin as she struck an over-the-shoulder pose, all thanks to her frock's jaw dropping backless feature.

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Dressed to kill! Lily Collins was a picture of sophisticated glamour as she attended the GO Campaign Gala in Los Angeles on Saturday night

Business in the front... The black gown skimmed her enviably slender frame from head to toe, cinching in at her waist with a metallic belt

The Mirror Mirror actress turned heads of all at the bash in the figure-hugging floor length frock, which was decorated with sparkles all over that shimmered in the light. 

Adding a chunky metallic belt, the model cinched in her petite waist before the dress skimmed her leggy figure to the floor.   

She rocked a pair of strappy black heels and upped the glamour by styling her brunette tresses into loose, large curls that were dramatically swept across her head. 

Stopping them in their tracks! The starlet flashed plenty of skin as she struck an over-the-shoulder pose, all thanks to her frock's jaw dropping backless feature

Red hot! Channeling old Hollywood, Lily added a slick of bold crimson lipstick for a splash of colour

Old school beauty: Sh upped the glamour by styling her brunette tresses into loose, large curls that were dramatically swept across her head

Lily also added slick of bold red lipstick for a pop of colour, whilst complimenting the remainder of her blemish-free complexion with mascara and ample shimmering eye shadow.

The GO Campaign is a non-profit that provides assistance to orphans and children in need globally.

Lily wasn't the only star to show their support for the organization that night.  

Robert Pattinson sharpened up for the evening by rocking a dark blue suit, black shirt, tie, and leather shoes.

 New 'do! Robert Pattinson must have had fans doing double takes, as he showed off his noticeably darker hair colour while walking the red carpet

Suited and booted! He posed with actor Ewan McGregor, who kept things classy in a dashing blue suit with pocket square

Aww: Courtney Love was also on the red carpet with her boyfriend Nicholas Jarecki by her side

The Twilight actor must have had fans doing double takes, as he showed off his noticeably darker hair colour while walking the red carpet. 

He posed with actor Ewan McGregor, who kept things classy in a dashing blue suit with pocket square. 

Courtney Love was also on the red carpet with her boyfriend Nicholas Jarecki by her side. 

The hit-maker channeled her vampy side as she arrived to the star-studded bash in an edgy black frock complete with long sheer sleeves and an animal print purse in her hand. 

Date night: The actor lovingly pulled his wife Eve Mavrakis close

Look who's here! Robert F. Kennedy Jr. posed up with actress Donna Dixon 

Looking good! Julia Ormond opted to keep it effortlessly stylish in a low-cut black top and matching trousers

Man of style! Liam Hemsworth looked dashing in a black blazer, trousers, and white sneakers 

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