She may be 43-years old with a ten year career in showbusiness, but Jennifer Lopez can clearly compete with even the youngest pretender in the style stakes.

The singer and actress stepped out at a promotional screening of her new film Parker showing off her famous behind in an eye popping Kaufman Franco gown.

The floor length white dress featured a number of strategically placed slits which showed J-Lo had forgone underwear for her night out in Las Vegas on Thursday.

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The white stuff: Jennifer Lopez shows off her enviable curves in a stunning gown with risqué slits showing the star was wearing no underwear at a screening of film Parker in Las Vegas on Thursday

With her long brown hair pulled into a loose updo – black eye make-up and pale lipstick added to her striking appearance.

Although the Kaufman Franco designed dress was high cut at the neck, it featured clear mesh detail, giving the gown a backless look along with 𝓈ℯ𝓍y splits either side.

The star is no stranger to revealing gowns and is particularly famous for the striking Versace green and blue number she wore to the Grammy Awards back in 2000.

The big reveal! All eyes were on J-Lo as she strutted around the reed carpet in the eye popping gown

The covered view: From the front, J-Lo’s gown looked relatively demure, until she turned to the side to show off the saucy slits

Making the most of her assets: JLo seems happy for all eyes to be on her as she poses

That dress was slit at the front down to the waist and showed off the singer’s curvy figure to the maximum.

The A-lister has recently admitted to being depressed while shooting the new film, due to her divorce from Marc Anthony.

‘It was very hard to get up in the morning. Very hard. When you’re depressed and sad all the time it’s very difficult,’ she told the Mirror.

‘I felt like my whole life had fallen apart. What I had known for seven or eight years with my children and everything, it was just… boom! An explosion!’

‘It was really painful but the kids give you a certain strength because you cannot completely fall apart because they’re up at six in the morning and everything’s fine and normal for them,’ she added.

But on Thursday, J-Lo even managed to outshine reality star Coco who unusually covered up her famous cleavage in a high necked blue psychedelic mini dress and red heels.

The reality star, who was without husband Ice-T, wore her blonde hair in a long haired tousled style as she stepped out on the red carpet.

Looking sultry: The star seems body confident as she makes the most of her time in the limelight

Smouldering: Jennifer pouted her way through the red carpet event like a true professional

Toyboy love: Casper Smart joined his girlfriend on the red carpet in Sin City

Show of support: Casper sported an all black ensemble, perhaps to contrast with J-Lo

Keeping close: The star keeps her toyboy close to her as she poses for photos on the red carpet

Meanwhile, Jennifer was joined by her toy boy beau Casper Smart, despite rumours she paid a visit to ex-husband Marc Anthony in New York earlier this week.

A source told the New York Post’s Page Six that the star spent two and a half hours with the Latin singer at ‘The Mark’ hotel, who was later seen emerging with his head down in a bid to go unnoticed.

The eyewitness said: ‘He came out really quickly, with his head down, like he didn’t want to be seen.’

Expectant: Holly Madison showed off her growing 𝚋𝚊𝚋𝚢 bump in a clinging red dress

It’s a rare cover up: Coco hid her famous assets under a psychedelic blue, green and black mini dress and red heels

Meet and greet: Coco was a hot favourite with the waiting fans as she walked the red carpet

Jennifer, dressed in thigh-high stiletto boots and a leopard-print mini-dress, left shortly afterwards with a huge smile on her face.

But on Thursday, Casper arrived at Planet Hollywood in a black suit, shirt and tie – perhaps to compliment his girlfriend’s all white outfit.

In Parker, which is released on January 25, she stars alongside Jason Statham who plays a professional thief who is double crossed by a gang during a job.

Time for Coco: Parker star Jason Statham happily posed with the bubbly blonde outside the Vegas hotel

Trying to be the centre of attention: Coco did her best to stand out in her tight dress as she posed for photographers

Suited and booted: Jason looked smart as he promoted the film in which he takes the starring role

After being left for dead, he enlists the help of one of the gang’s intended victims – real estate agent Leslie Rogers (Lopez), to aid his  plan for revenge.

The British actor arrived in Sin City looking dapper in a black suit and tie,but was without girlfriend Rosie  Huntington-Whiteley.

However, the model did support him at a screening of the film in New York on Wednesday night.

JLo’s ex-husband Marc Anthony has just split from model girlfriend Shannon Lima, after rumours circulated of secret meet-ups with Jennifer.

‘Marc is no longer dating model Shannon de Lima,’ his spokesperson Blanca Lasalle told People magazine.

‘The amicable breakup became official right in mid-January.’

Stars of the show: Parker stars Jason as a professional thief and J-Lo as an estate agent