Madame Busty-fly! Kim Kardashian shows off some serious cleavage - and leg - in split gown as she and Kanye West lead the stars at premiere of Sofia Coppola's debut opera La Traviata

She has thrilled the crowds in Cannes and London this week alone.

But Kim Kardashian kept her best outfit until last as she led the stars at one of  glamorously high-brow premieres in recent memory.

The reality TV queen led the glamour as she was among the first stars to arrive for the uber-chic opening of Sofia Coppola's take on La Traviata.

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Going highbrow: Kim Kardashian kept her best outfit of her European tour until last as she led the stars at one of glamorously high-brow premieres in recent memory - Sofia Coppola's opening night of La Traviata

The stunning mother-of-two looked sensational as she slipped her famous curves into a very figure-hugging white Vivienne Westwood number.

The star's generous assets were on full display as she worked the red carpet.

She was joined by rapper husband Kanye West, who looked smart in a black tuxedo and suede boots.

The pair were the special guests of designer Valentino, the man who has created the lavish costumes for Coppola's big opera debut.

Kim was given a run for her money in the style stakes by Keira Knightley, who is a rare addition to the A-list packed red carpets now she is a mother.

That's amore: The reality TV queen led the glamour as she was among the first stars to arrive for the uber-chic opening of Sofia Coppola's take on La Traviata alongside husband Kanye West

All white on the night: The stunning mother-of-two looked sensational as she slipped her famous curves into a very figure-hugging white Vivienne Westwood number

Snap happy: Kim seemed more interested in checking her make-up looked flawless rather than attending the glitzy premiere

Best foot forward: As they arrived, Kim carefully exited her car in her thigh-slash number

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Here comes the bride: Kim rocked the bridal-inspired gown as she emerged from her limo, garnering a rare smile from Kanye - before the rapper broke back into one of his scowls

Lover's tiff? Kim said something to her husband which didn't seem to impress the Stronger hitmaker

Very highbrow: The stunning star added some height to her petite frame in a pair of killer gold platforms as Kanye stayed glued to her side

Alright sunshine? Kim looked incredible as the evening Italian sun hit her flawless skin on the red carpet

Walk this way: The beauty led her man into the venue for the highly anticipated opening night of the opera, which has boosted the struggling site's ticket sales

Keira was also among the well-heeled guests at the event, and stunned in a seriously seductive scarlet gown.

The actress showed off her slender figure on the red carpet in the daring velvet number, which featured a cut-out bodice.

The star posed alongside her rocker husband James Righton, who looked dapper in a blue suit.

The filmmaker, daughter of silver screen legend Francis Ford Coppola, has taken charge of the new production at the Opera of Rome in Italy.

Red-dy to rule the red carpet: Kim was given a run for her money in the style stakes by Keira Knightley, who is a rare addition to the A-list packed red carpets now she is a mother

Scarlet woman: Keira was also among the well-heeled guests at the event, and stunned in a seriously seductive scarlet gown

The star posed alongside her rocker husband James Righton, who looked dapper in a dinner suit, and Valentino designers Maria Grazia Chiuri (left) and Pierpaolo Piccioli

The real Queen of the night? Keira Knightley appeared to have taken some influence from the tomes of operatic history as she embraced a sizzling theatrical inspired sartorial theme

Date night? Arriving alongisde her husband James Righton, the 31-year-old actress looked sensational in flesh-flashing scarlet gown

Happy family: The couple - who have been married three years - still looked a perfect match, and James couldn't have appeared prouder of his radiant wife

All white on the night: Elizabeth Hurley also arrived in a stunning white gown, which clung to her enviable figure

Figure flaunting fashion: The model and actress ensured there was little to detract from her simple and striking dress, keeping her wardrobe uncluttered

The auteur, who was nominated for a Best Director Oscar for Lost in Translation, revealed she was nervous about taking on such a revered piece of work until Valentino talked her into it.

She explained: 'I didn’t really know what to expect and I never could have had the courage to direct an opera, but then Valentino and Mr [Giancarlo] Giammetti [the designer’s artistic collaborator] asked me.

'I thought what an incredible experience to be able to work in the Rome opera house with the beautiful costumes and the team here, so that motivated me to take a chance and do something that was scary and very unfamiliar. 

'My great uncle has conducted La Traviata so he sat down and spoke to me a lot – I felt lucky to have this culture in my family.'

Mamma mia! Bond beauty Monica Bellucci looked resplendent in a plunging black silk gown which she had added some serious bling to in the form of a sapphire and diamond necklace

Bell of the ball: Sofia, who was nominated for a Best Director Oscar for Lost in Translation, revealed she was nervous about taking on such a revered piece of work until Valentino talked her into it

Valentino - who is a patron of the opera house - invited Coppola after watching her 2006 movie Marie Antoinette. 

The 84-year-old admits he was drawn by her skill of 'balancing the classic and the modern'.

The collaboration has already proven box office gold - with 1.2 million euros being taken already for the run, which lasts until June 30.

This is a huge success for the venue, which has struggled to compete with its rivals and has been hit with financial difficulties in recent years.

Carlo Fuortes, the general manager of the opera house, says: 'We had no doubts about her abilities but crossing from cinema to opera is not easy. She turned out to be a wonderful director. For us it’s a great honour to have her here.

'The opera house has already had requests from theatres in Japan and Spain to stage the production... It’s very rare for that to happen before the preview performance has even taken place.'

Coppola and Valentino have also teamed up with Nathan Crowley, a Brit production designer who has worked on the Batman franchise. 

Stylish patron: Valentino - who is a patron of the opera house - invited Coppola after watching her 2006 movie Marie Antoinette