She was one of the A-list guests at Naomi Watts and Billy Crudup's star-studded wedding in Mexico City over the weekend.  

And Nicole Kidman has shared a sweet snap of herself cuddling up to her bestie at the lavish ceremony.  

King Kong star Naomi, 55, was beaming in a black and white photo Nicole, 56, shared to her Instagram.

The blushing bride sat on the Eyes Wide Shut actress' lap as the pair wrapped their arms around each other for the happy snap.

'Best wedding weekend in Mexico City full of love and fun! Congrats to the beautiful bride and groom,' Nicole wrote, tagging Naomi in the happy snap.

Nicole Kidman (right) has shared a sweet snap of herself cuddling up to her bestie Naomi Watts (left) at her wedding to Billy Crudup in Mexico City over the weekend

Nicole Kidman (right) has shared a sweet snap of herself cuddling up to her bestie Naomi Watts (left) at her wedding to Billy Crudup in Mexico City over the weekend

Nicole rocked a very sultry look for the nuptials, wearing an embellished silver top with a black lace skirt and lashings of deep red lipstick. 

The besties also posed in another very sweet photograph with Naomi's mother Myfanwy Edwards.

In the image, Nicole could be seen lifting her friend off the ground a year after she first tied the knot with Billy in a courthouse wedding.

Nicole captioned the snap, 'Her feet never touched the ground! #thebride' as she wrapped her arms around the bride and hoisted her into the air.

The besties also posed in another very sweet photograph with Naomi's mother Myfanwy Edward

The besties also posed in another very sweet photograph with Naomi's mother Myfanwy Edward 

In the image, Nicole wore a baby blue shirt with white linen slacks as Naomi stole the spotlight in a very colourful co-ord set from La Double J worth $2,100. 

Naomi and Billy, who tied the knot in a simple courthouse ceremony last year, said 'I do' for the second time on Saturday, almost a year to the date of their first wedding.

This time around, the pair threw a lavish ceremony and reception for family and friends in Mexico City.

Video shared on social media by Naomi's brother Ben shows the Feud star wearing a simple but elegant sleeveless off-white gown with a deep V-neck and a belted waist.

She and the wedding party waved from an elevator on the way to the ceremony with the Watcher star also carrying a bouquet of white anemone. 

Naomi and Billy, (left) who tied the knot in a simple courthouse ceremony last year, said 'I do' for the second time over the weekend, almost a year to the date of their first wedding

Naomi's blonde hair was styled in a low bun with tendrils framing her face and her makeup looked camera ready with a soft pink lip.

Meanwhile, Billy looked very handsome in a traditional black suit. 

Naomi's child Kai, 15, and niece Ruby were bridesmaids, and they wore strapless champagne colored gowns with ruching at the waist.

Both teens styled their hair straight and pulled back in half ponytails. 

Naomi stunned in a simple white cowl neck dress

Naomi stunned in a simple white cowl neck dress 

She was walked down the aisle by her son Sasha, 16

She was walked down the aisle by her son Sasha, 16

The pair announced they had wed in a simple courthouse ceremony in New York on social media  June 10, 2023

The pair announced they had wed in a simple courthouse ceremony in New York on social media  June 10, 2023

Also in the wedding party were Naomi's son Sasha, 16, and Billy's son William, 20, with both styled in dark suits. 

Naomi shares both her children with former partner Liev Schreiber, 56, while Billy shares William with ex-partner Mary Louise Parker, 59. 

Ben Watts also shared an Instagram Story video showing proud mom Myfanwy getting emotional before the ceremony. 

Included in the wedding party were Naomi's children Kai, 15, and niece Ruby, who served as bridesmaids. The actress's son Sasha, 16, and Billy's son William, 20 also participated in the festivities

Included in the wedding party were Naomi's children Kai, 15, and niece Ruby, who served as bridesmaids. The actress's son Sasha, 16, and Billy's son William, 20 also participated in the festivities 

Other guests included Justin Theroux and girlfriend Nicole Brydon Bloom

Destination Wedding, Event & Travel Planner Billy Folchetti also shared some black and white photos of the reception hall to Instagram before the guests arrived.  

Video from the rehearsal dinner the night before shows Naomi in a gorgeous yellow dress with floral print.

During a speech, the bride-to-be held her groom's hand and told their guests: 'This is a reminder of what life's about, the affirmation of love. It's one of the simplest things, but one of the most important.'