Olivia Wilde looks elegant in a black gown and platform boots at Fashion Trust Awards in LA

Olivia Wilde showcased her elegant style while attending the Fashion Trust U.S. Awards in Los Angeles on Tuesday.

The House star, 39, looked poised in a high-neck conservative black gown, with a flowing bottom and chic bell sleeves. 

The actress - who recently shared sizzling bikini snaps to her Instagram - added height to the look with a pair of extra tall black platform boots.

Wilde wore her brunette tresses in a stylish updo, with a few strands framing her face in the front.

Earlier in the day the mom-of-two playfully joked about the 'tramp stamp' dragon tattoo on her behind in a cheeky post celebrating her birthday, which took place a little over a week ago. 

Elegant: Olivia Wilde showcased her elegant style while attending the Fashion Trust U.S. Awards in Los Angeles on Tuesday

Elegant: Olivia Wilde showcased her elegant style while attending the Fashion Trust U.S. Awards in Los Angeles on Tuesday

The entertainer - born Olivia Jane Cockburn - sported striking makeup, with black undereye liner drawing attention to her magnetic blue eyes. 

Fashion Trust U.S. is a non-profit that is dedicated to 'discovering, funding, and nurturing young design talent with the aim of helping them build their label into a thriving global brand.'

It was launched back in January and encourages up-and-coming designer to apply to win 'financial grants and mentorships covering budget, strategy, digital, merchandising, and general business support.' 

Other stars at the event included Kate Beckinsale, Heidi Klum and Alessandra Ambrosio, among others. 

While at the event she was pictured posing with designer Elena Velez.

Wilde also took to Instagram to show off a closer look at her incredible makeup with an artsy black and white video.

In another post she thanked stylist Karla Welch for the invite and gushed about being 'inspired by all these amazing new designers.'

Olivia - who split from singer Harry Styles in November - also took to Instagram on Tuesday to prior to attending the event to showcase a tattoo of a dragon on her backside, which she got when she was 13-years-old.   

Stylish: The House star, 39, looked poised in a high-neck conservative black gown, with a flowing bottom and chic bell sleeves

Stylish: The House star, 39, looked poised in a high-neck conservative black gown, with a flowing bottom and chic bell sleeves

Striking: The entertainer - born Olivia Jane Cockburn - sported striking makeup, with black undereye liner drawing attention to her magnetic blue eyes

Striking: The entertainer - born Olivia Jane Cockburn - sported striking makeup, with black undereye liner drawing attention to her magnetic blue eyes

Chic: Wilde wore her brunette tresses in a stylish updo, with a few strands framing her face in the front Standing tall: The actress added height to the look with a pair of extra tall black platform boots

Standing tall: The actress added height to the look with a pair of extra tall black platform boots

Chic ladies: The star was pictured posing with designer Elena Velez

Chic ladies: The star was pictured posing with designer Elena Velez 

Inside: Olivia was pictured speaking inside

Inside: Olivia was pictured speaking inside

Star-studded: Other stars at the event - held at Goya Studios - included Kate Beckinsale, Heidi Klum and Alessandra Ambrosio

Star-studded: Other stars at the event - held at Goya Studios - included Kate Beckinsale, Heidi Klum and Alessandra Ambrosio

She wrote: '39 and feeling fine. Thanks for the birthday love. I milked it for way too long and it’s been great. Here’s to whatever’s next. Probably not another tramp stamp but who knows. #shameless #howdareshe #thehorror.' 

The snap saw next as she posed from behind in a white thong bikini, next to a swimsuit clad gal pal. 

She previously spoke about the ink while appearing on the Craig Ferguson show. 'I have a tattoo of a dragon that I got when I was 13,' she told the host.

'Who would tattoo a 13-year-old girl?' Ferguson asked her at the time.

'You have over cash, they will tattoo a cat,' she replied, joking that though it had 'a lot of meaning at the time' she thought it was 'hideous' now.

'Where is it?' he asked. 

'It's on my lower, lower, lower back,' she replied, adding, 'It's not a tramp stamp.' However the host chimed in, 'Yes it is!'

She also recently shared a number of stunning bike snaps, and appeared to have a blast on a sun-soaked getaway with her friend Molly Howard over the weekend.

Eye-catching! She also took to Instagram to show off a closer look at her incredible makeup with an artsy black and white video

Eye-catching! She also took to Instagram to show off a closer look at her incredible makeup with an artsy black and white video

Inspired: In another post she thanked stylist Karla Welch for the invite and gushed about being 'inspired by all these amazing new designers'

Inspired: In another post she thanked stylist Karla Welch for the invite and gushed about being 'inspired by all these amazing new designers' 

'Tramp stamp': Earlier in the day the mom-of-two playfully joked about the 'tramp stamp' tattoo on her behind in a cheeky post, a little over a week after her birthday

'Tramp stamp': Earlier in the day the mom-of-two playfully joked about the 'tramp stamp' tattoo on her behind in a cheeky post, a little over a week after her birthday

It comes amid reports that she is in 'constant communication' with ex Jason Sudeikis, who she shares her daughter Daisy, six, and eight-year-old son Otis.

A source close to the former couple, who are are both 'very single', insisted that the pair 'do not have any drama anymore.

The two ignited speculation that they were headed for a recoupling in January, when they were spotted being super touchy-feely with each other in Los Angeles, however the source noted that they are not currently in a romantic relationship and are instead focusing on 'friendship.'

ncG1vNJzZmivp6x7pa3IpbCmmZmhe6S7ja6iaKymqLWww8GisWiZoqm2pLjEZmhqcGhthHqBjoijoq6ZlnqYtcudnGakn6S4tHnEpZygmZ6peqO4wJyiZp%2BfrLtuvMuaq5%2BnoqJ6o7vOrapmfpGotaq7zWaLq62jqXqCw8Crm6xlfHZ7qcDMpQ%3D%3D