Olivia Wilde brightens up the red carpet in colour-block dress as she supports war veterans at Headstrong event in NYC

Some big name stars turned out to support the Headstrong Project's 3rd annual Words of War event on Monday night.

Olivia Wilde, Michelle Monaghan, Chelsea Clinton and Chris Rock were some of the celebrities pictured arriving at One World Trade Center to support the cause which benefits veterans of post 9/11 war.

Wilde, 31, was understated but gorgeous in a long black dress with colourful bodice as she hit the red carpet. 

Stylish: Olivia Wilde made a colourful appearance appearance at Headstrong Project's 3rd annual Words of War event in New York on Monday

Stylish: Olivia Wilde made a colourful appearance appearance at Headstrong Project's 3rd annual Words of War event in New York on Monday

The skirt of her gown grazed the floor revealing some red patent heels while the top of the garment featured a desiign of colourful shapes and a sheer neckline.

The actress, who currently stars in drama Meadowland, wore her hair in a low ponytail and appeared to be wearing barely a scrap of make-up.  

Meanwhile, Michelle Monaghan, 39, donned a chic asymmetric shift dress and dressed it up with gold accessories.  

Shapes and colours: Olivia kept it understated with her locks tied in a low ponytail 

Shapes and colours: Olivia kept it understated with her locks tied in a low ponytail 

Be bold in a color block maxi dress like Olivia

Olivia Wilde stepped out for a good cause when she attended a charity event at the World Trade Center in New York. The House star wore a color block dress by Roksanda to the bash with a pair of red patent leather pumps.

This isn't your ordinary maxi dress. The ankle length frock includes a mesh neckline and bold color block design along the bodice. Pulled from the Serbian designer's Resort 2016 line, the lively, prismatic shapes were prominent throughout most of the collection.

If you want Olivia's exact look, click right to nab her dress at Net-A-Porter for $2430. And if the designer price tag is too much to bear, emulate her style with one of the picks below.

Team with classic black heels and minimal jewelry to let the vivid patterns steal the spotlight!

* PRICES MAY NOT BE AS ADVERTISED
Sophisticated: Michelle Monaghan opted for a simple asymmetric shift dress for the event

Sophisticated: Michelle Monaghan opted for a simple asymmetric shift dress for the event

Finishing touches: The 39-year-old beauty teamed the dress with gold accessories 

Finishing touches: The 39-year-old beauty teamed the dress with gold accessories 

According the website proceeds from Words of War help to provide 'completely cost free, bureaucracy free, state of the art care' to help post 9/11 veterans of combat heal the wounds of war.

Comedian Rock, 50, kept it low key in a charcoal grey sweater and navy slacks as he posed for photos with one of the military veterans at the event. 

Wilde, who is engaged to comedian Jason Sudeikis, went solo for the evening leaving her beau and their young son Otis at home. 

Meanwhile, the brunette beauty recently admitted she was completely hammered when she filmed 2013 indie Drinking Buddies.

Date night: Co-chair Chelsea Clinton arrived with her husband Marc Mezvinsky in a cute black mini dress

Date night: Co-chair Chelsea Clinton arrived with her husband Marc Mezvinsky in a cute black mini dress

Low key: Rock, 50, was laid back in a charcoal sweater and slacks

Low key: Rock, 50, was laid back in a charcoal sweater and slacks

Gothic: Alice + Olivia CEO Stacey Bendet wore her trademark jet black eye-shadow with a bold maxi dress

Gothic: Alice + Olivia CEO Stacey Bendet wore her trademark jet black eye-shadow with a bold maxi dress

'We were hammered the entire movie because it was real beer, because beer on that set was cheaper than water, because we were shooting in a brewery,' the actress revealed in an interview with Sam Jones for Off Camera With Sam Jones.

She also explained that the real booze was a shock to co-star Anna Kendrick, who arrived on set two weeks later than everyone else.

'She sat down to do the first scene and took a huge gulp of beer, not realizing it was real, and was like instantly hammered.' Olivia said of her diminutive cast-mate.

'She was like, "What’s happening? What are you guys doing?" and we were like, "Oh, we forgot to tell you – the beer's all real and everyone's drunk. It's 10am., welcome to Drinking Buddies."'

Stylish couple: Late Night host Seth Meyers arrived with wife Alexi Ashe

Stylish couple: Late Night host Seth Meyers arrived with wife Alexi Ashe

Demure: Actress Amy Ryan kept it understated in black trousers and a cardigan with strappy heels

Demure: Actress Amy Ryan kept it understated in black trousers and a cardigan with strappy heels

Rock posed with retired US Army Captain, Infantry, James Van Thach and his pup

Rock posed with retired US Army Captain, Infantry, James Van Thach and his pup

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