Nicole Kidman was looking positively luminous as she attended the Palm Springs International Film Awards in California on Friday night. 

The 57-year-old showed off her line-free visage as she walked the red carpet at the prestigious event. 

The Moulin Rogue star stunned in an oceanic themed gown with a corseted bust that featured a fish scale design. 

It was accentuated by mermaid style skirting in a deep sea green silk with a short train. 

Nicole added gold earrings with an amber stone and a ring, but otherwise skipped the accessories. 

The strawberry blonde wore her locks down in soft waves and chose a clean and fresh makeup look with a natural pink lip. 

At the event, Nicole broke down in tears on stage as she paid tribute to her late parents.

The actress spoke in in an emotional speech as she accepted the International Star Award from Jamie Lee Curtis. 

Nicole thanked her parents for teaching her resilience and giving her the 'love and strength' that she needed to move forward in life. 

Accepting her award on stage at Palm Springs Convention Center, she said: 'I went home over Christmas. I've lost both my parents, and I'm in that place, like, ok, this is different now. 

'They've given me the resilience and they've given me the love and they've given me the strength to keep moving forward.'

Her mother Janelle tragically died just hours before she was awarded Best Actress for her role in Babygirl on the final day of Venice Film Festival in September in a huge achievement. 

It comes after one of Nicole's best kept beauty secrets was revealed.  

In October, the Oscar-winning actress wore a hairpiece as she attended the premiere of Netflix's Spellbound in New York City.

The Hollywood star wore the weave to add volume to her strawberry blonde locks to help give her a more youthful look. 

However, the extra hair and Nicole's natural locks seemed to be a slightly different shade as she flicked her locks over her shoulder.

The weave sat atop her head and was visible above her forehead.

Hollywood stars often wear wigs and hair extensions to achieve a more youthful and appearance as hair thins and loses volume with age. 

Nicole also showed off her smooth, porcelain visage at the premiere with a natural makeup palette.

She looked ethereal in a white lace dress as she posed on the red carpet.

Nicole's habit of wearing wigs in Hollywood movies has earned her a cult following over the years.

She hasn't showcased her natural hair on screen since the early days of her career, and almost exclusively wears wigs for film roles.

One of the few times Nicole has displayed her naturally curly hair was in her first feature film, 1983's BMX Bandits.

The Hours star has previously credited healthy lifestyle choices as the secret behind her age-defying complexion. 

In 2007, Nicole denied undergoing cosmetic surgery and said her flawless skin is a result of her healthy lifestyle.

'To be honest, I am completely natural,' she told Marie Claire at the time.

'I wear sunscreen and I don't smoke. I take care of myself. I'm very proud to say that.'

However, in 2011, she admitted to getting Botox during an interview with German magazine, TV Movie.

'I've tried a lot of things, but aside from sports and good nutrition, most things don't make a difference,' she said.

'I even tried Botox but I didn't like how my face looked afterwards. Now I don't use it anymore and I can move my forehead again.'

Nicole also previously showed off her collection of anti-ageing serums from plant-based beauty brand Seratopical.

In a sponsored video shared to Instagram, she was seen using the Radiant Face & Neck Serum, which retails for USD$40 (AUD$60).

She then demonstrated another of her favourite products, the Clarity Foaming Cleanser, which costs USD$25 (AUD$37).

Lastly, Nicole held up the Adoring Eye Serum while winking for the camera. The product also sells for USD$40 (AUD$60).