Sarah Paulson flashes her pink underwear in lacy white dress at American Horror Story: Freak Show screening event

She is one of the most memorable characters in American Horror Story: Freak Show

But it was a poor choice of undergarment that was truly horrifying for Sarah Paulson.

The 40-year-old actress flashed a bit of her pink floral slip dress in a lacy white number as she attended a screening event in Los Angeles for her FX series on Thursday.

Revealing: Sarah Paulson attended a screening for American Horror Story: Freak Show in Los Angeles on Thursday

Revealing: Sarah Paulson attended a screening for American Horror Story: Freak Show in Los Angeles on Thursday

She looked good despite showing off her underwear in the light floral number while on the red carpet at the gala held at Paramount Studios for American Horror Story: Freak Show.

The 12 Years A Slave star finished off the look with a pair of matching white leather heels and accesorised with a hot pink clutch.

Her signature blonde locks were combed back elegantly as she sported neutral-coloured make-up on her face.

Daring: The 40-year-old actress may have picked the wrong undergarment as her floral-patterned slip dress could be seen under her white lacy number

Daring: The 40-year-old actress may have picked the wrong undergarment as her floral-patterned slip dress could be seen under her white lacy number

Blonde beauty: She teamed the look along with a pair of white leather heels and a magenta-colouered clutch

Blonde beauty: She teamed the look along with a pair of white leather heels and a magenta-colouered clutch

Dynamic duo: Sarah posed for a snap with co-star Kathy Bates

Dynamic duo: Sarah posed for a snap with co-star Kathy Bates

Back in April she announced that she would be returning to the series for the fifth season titled American Horror Story: Hotel. 

She tweeted on April 13: 'I so f**keeeen HAPPY to be able to finally tell you: IM BAAAAAACCK!! #AHSHotel' 

AHS showrunner Ryan Murphy tweeted the official announcement of her return and told fans of the series that in season five, they can expect the actress to be 'the baddest bad girl of them all.'

Wonder in white: Angela Bassett brought the glam as she sported the same colour as Sarah

Wonder in white: Angela Bassett brought the glam as she sported the same colour as Sarah

Evergreen: The 56-year-old star donned a clinging white number featuring a deep V-neckline and cut-out along the side

Evergreen: The 56-year-old star donned a clinging white number featuring a deep V-neckline and cut-out along the side

Brunette beauty: She completed the look with white leather heels and a matching clutch
Brunette beauty: She completed the look with white leather heels and a matching clutch

Brunette beauty: She completed the look with white leather heels and a matching clutch

Previously on AHS, Sarah played conjoined twins Bette and Dot, witch Cordelia Foxx, reporter Lana Winters, and psychic medium Billie Dean Howard.

The actress started with a small role in season one of American Horror story in 2011-12, and then returned to star in the next three.

Sarah was not the only one who wore white at the event as Angela Bassett stunned in a clinging sleeveless number featuring a V-neckline.

Dark side: Jessica Lange looked glam in a black dress featuring a sequined detaling on the neckline with matching heels

Dark side: Jessica Lange looked glam in a black dress featuring a sequined detaling on the neckline with matching heels

Veteran: the 66-year-old Kathy looked comfortable in all black as she added colour with a patterned scarf

Veteran: the 66-year-old Kathy looked comfortable in all black as she added colour with a patterned scarf

Monochrome madness: Naomi Grossman sported a black number with an intricate white pattern on the skirt
Monochrome madness: Naomi Grossman sported a black number with an intricate white pattern on the skirt

Monochrome madness: Naomi Grossman sported a black number with an intricate white pattern on the skirt

The 56-year-old stunner completed the look with even more white as she rocked a pair of strappy heels with a matching clutch.

The screening event was also attended by other stars including Jessica Lange, Kathy Bates, Naomi Grossman, John Carroll Lynch, Finn Wittrock and Denis O'Hare.

American Horror Story: Freak Show was centred around one of the last remaining freak shows in the United States in Jupiter, Florida and their struggle for survival. 

Dapper: Finn Wittrock wore a black suit with an unbuttoned smart whtie shirt

Dapper: Finn Wittrock wore a black suit with an unbuttoned smart whtie shirt

He's no clown! John Carroll Lynch rocked a blue blazer over a Hawaiian shirt and khaki trousers

He's no clown! John Carroll Lynch rocked a blue blazer over a Hawaiian shirt and khaki trousers

Think pink! Denis O'Hare wore a short sleeved white button-down tucked into pink trousers 

Think pink! Denis O'Hare wore a short sleeved white button-down tucked into pink trousers 

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now