Aubrey Plaza turns heads in plunging black velvet dress for Legion season two premiere after being linked to Justin Theroux

She has been linked to newly single Justin Theroux.

But on Monday it was all about work for Aubrey Plaza as she dressed to the nines for the season two premiere of her hit Marvel Universe show Legion. 

The Parks And Rec alum, 33, teased her cleavage in a black velvet look which plunged low upon her chest while also climbing up her thin stems with a provocative thigh-high slit.

Taking the plunge! Aubrey Plaza sizzled in a black velvet dress during the debut of her show Legion's second season in LA on Monday

Taking the plunge! Aubrey Plaza sizzled in a black velvet dress during the debut of her show Legion's second season in LA on Monday

Aubrey simply sizzled in her LBD, which was the perfect balance of sexy and sophisticated.

The Ingrid Goes West star topped off the look with a golden wrist cuff, chunky statement ring and strappy Vince Camuto nude stilettos.

For beauty, she brushed her mahogany-brown locks out of her face while adding a pop of color with bright red lipstick.

The starlet, who plays the character Lenny Busker in the 60s-set superhero series, looked perfectly poised on the red carpet, as she pivoted and posed for the cameras. 

Striking the right balance: The Parks And Rec alum smoldered the LBD, which was the perfect balance of sexy and sophisticated

Striking the right balance: The Parks And Rec alum smoldered the LBD, which was the perfect balance of sexy and sophisticated

She's got front! The Ingrid Goes West star teased her cleavage in a black velvet look which plunged low upon her chest 

She's got front! The Ingrid Goes West star teased her cleavage in a black velvet look which plunged low upon her chest 

Thigh's the limit! Plaza's gown climbed up her thin stems with a provocative thigh-high slit
She's got it! The starlet looked perfectly poised on the red carpet, as she pivoted and posed for the cameras

Thigh's the limit! Plaza's gown climbed up her thin stems with a provocative thigh-high slit

This public appearance comes just days after Aubrey, 33 was spotted on the streets ofNYC with Justin, 46, who announced his divorce from Jennifer Aniston in February.   

A source told MailOnline: 'They are friends. They went for a walk after a meeting and discussed a potential work project.'

Aubrey is supposedly still dating long-term love, screenwriter Jeff Baena, 40.  The couple were last pictured together in June 2017.  

Rumours: Aubrey's public appearance comes just days after she was spotted on the streets of NYC with Justin Theroux, who attended his own premiere party for A Quiet Place on Monday

Rumours: Aubrey's public appearance comes just days after she was spotted on the streets of NYC with Justin Theroux, who attended his own premiere party for A Quiet Place on Monday

Love life: Aubrey is supposedly still dating long-term love, screenwriter Jeff Baena, 40. The couple were last pictured together in June 2017 

Love life: Aubrey is supposedly still dating long-term love, screenwriter Jeff Baena, 40. The couple were last pictured together in June 2017 

At Monday's premiere , the Delaware-born actress teamed up for a photo with castmate Rachel Keller, who wowed in a minimal noir ensemble which put her fabulous figure front and center. 

The star, who plays Sydney 'Syd' Barrett on the FX series, wore ostrich feather fringe across the hemline of her dress for some extra flair.

Keller added a dust of rosy eyeshadow on her lids for an ultra-fashionable touch. 

Solid gold! The Ingrid Goes West star topped off the look with a golden wrist cuff and chunky statement ring

Solid gold! The Ingrid Goes West star topped off the look with a golden wrist cuff and chunky statement ring

Chic castmates! At the event, the Delaware-born actress teamed up for a photo with castmate Rachel Keller

Chic castmates! At the event, the Delaware-born actress teamed up for a photo with castmate Rachel Keller

Heels to you! The star, who plays character Lenny Busker on the show, added strappy nude stilettos for a classic touch

Heels to you! The star, who plays character Lenny Busker on the show, added strappy nude stilettos for a classic touch

Aubrey also posed with series lead Dan Stevens, who was handsome as can be in a bright magenta suit and skinny, black tie.

The English gent, who plays the offspring of X-Men's Professor X, kept a wash of dark stubble across his face for a laid-back touch.

But it was his footwear that really turned heads, as he sported checkerboard Doc Martins made to look like a chessboard filled with pieces and forest green socks underneath.

Pretty in pink! Aubrey also posed with series lead Dan Stevens, who was handsome as can be in a bright magenta suit and skinny, black tie

Pretty in pink! Aubrey also posed with series lead Dan Stevens, who was handsome as can be in a bright magenta suit and skinny, black tie

Ruffling feathers! The star, who plays Sydney 'Syd' Barrett on the FX series, wore ostrich feather fringe across the hemline of her dress for some extra flair
Unconventional! Keller added a dust of rosy eyeshadow on her lids for an ultra-fashionable touch

Ruffling feathers! The star, who plays Sydney 'Syd' Barrett on the FX series, wore ostrich feather fringe across the hemline of her dress for some extra flair

Retro flair! The English gent brought along girlfriend Susie Harriet, who oozed 60s vibes in a green striped mini

Retro flair! The English gent brought along girlfriend Susie Harriet, who oozed 60s vibes in a green striped mini

He brought along girlfriend Susie Harriet for the screening.

The redhead was chic in a short, green-striped frock and strappy platforms which evoked heavy 60s vibes.

Castmate Katie Aselton also embraced retro chic, donning a yellow and blue dress which cascaded down with subtle ruffles of the floral fabric. 

Blast from the past! Katie Aselton embraced retro chic in a yellow and blue dress which cascaded down with subtle ruffles of the floral fabric

Blast from the past! Katie Aselton embraced retro chic in a yellow and blue dress which cascaded down with subtle ruffles of the floral fabric

Knit gonna lie! Better Thing's actress Mikey Madison smoldered in a tight knit dress which offered up hints of skin with its sexy weave
Dark angel! The pale beauty played up her look with rosy lips, strong eyebrow and raven tresses styled into flowing curls

Knit gonna lie! Better Thing's actress Mikey Madison smoldered in a tight knit dress which offered up hints of skin with its sexy weave

Making a statement! Star Amber Midthunder also went for Gothic glamour in an all-black minidress with lacey sleeves and a choker-neckline

Making a statement! Star Amber Midthunder also went for Gothic glamour in an all-black minidress with lacey sleeves and a choker-neckline

The Legion actress and wife of director Mark Duplass added a bright pink and purple checked purse with quirky cartoon eyes on it for accessories while letting her natural beauty shine through with textured tresses and a fresh face. 

Better Thing's actress Mikey Madison smoldered in a tight knit dress which offered up hints of skin with its sexy weave.

The pale beauty played up her look with rosy lips, strong eyebrow and raven tresses styled into flowing curls.

She's a classic! Designing Women favorite Jean Smart looked elegant in an off-white outfit brightened up with a hand-embroidered scarf

She's a classic! Designing Women favorite Jean Smart looked elegant in an off-white outfit brightened up with a hand-embroidered scarf

Twin it to win it! Twin stars Sarah and Laura Bellini complemented each other in black outfits featuring rich floral embroidery

Twin it to win it! Twin stars Sarah and Laura Bellini complemented each other in black outfits featuring rich floral embroidery

Star Amber Midthunder also went for gothic glamour in an all-black minidress with lacey sleeves and a choker-neckline.

The Native American beauty, who hails from the Fort Peck, Montana Sioux Tribe, rounded things out with minimal black heels, big hoops and a slicked back updo for hair.

Designing Women favorite Jean Smart looked elegant in an off-white outfit brightened up with a hand-embroidered scarf.

Coupled up! American Horror Story's Lily Rabe went for subtle elegance in a black jacquard suit while at the event with dapper partner Hamish Linklater

Coupled up! American Horror Story's Lily Rabe went for subtle elegance in a black jacquard suit while at the event with dapper partner Hamish Linklater

Twin stars Sarah and Laura Bellini complemented each other in black outfits featuring rich floral embroidery.

One German beauty donned a sexy minidress adorned with blue and green blooms while her other half combined a similar looking blouse with shiny black leggings for her own unique touch.

American Horror Story's Lily Rabe went for subtle elegance in a black jacquard suit while at the event with dapper partner Hamish Linklater.

Perfect pair! Legion newcomer Jelly Howie looked fresh in an off-the-shoulder dress while at the event with partner Daniel Boujour

Perfect pair! Legion newcomer Jelly Howie looked fresh in an off-the-shoulder dress while at the event with partner Daniel Boujour

Actress Jelly Howie, who is a newcomer to Legion this season, looked like she had Spring fever in an off-the-shoulder linen dress paired with black platforms.

Her beau Daniel Boujour found a way to be both casual and sharp on the red carpet, pairing white slacks and an easy grey tee which a blue chambray sports coat and slick specs.

Legion's second season premieres Tuesday, April 3 at 10pm on FX.

Back in action! Legion's second season premieres Tuesday, April 3 at 10pm on FX

Back in action! Legion's second season premieres Tuesday, April 3 at 10pm on FX

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Aubrey Plaza turns heads in plunging black velvet dress with leg slit for Legion season two premiere

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