Jennifer Lopez, Parker Premiere, Las VegasJennifer Lopez Was The Star Attraction At The 'Parker Premiere' In Las Vegas

Jennifer Lopez appeared to "go commando" at the Las Vegas premiere of her new drama-thriller 'Parker' on Thursday evening (January 24, 2013). Let us explain: the 43-year-old actress wore a figure-hugging white gown, which looked fairly innocuous at first glance, though the sheer side panels gave the game away - Lopez was indeed wearing no underwear. Still, the R&B star and former American Idol judge looked pretty elegant, accentuating her signature curves while beaming for the cameras.

The movie stars Jason Statham as a thief with a unique code of professional ethics who is double-crossed by his crew and left for dead. Assuming his new disguise and forming an unlikely alliance with a woman on the inside (Lopez), the professional criminal looks to hijack his former crew's latest heist.

Jennifer Lopez, Parker Premiere, Las VegasJennifer Lopez Went 'Commando' At The Parker Premiere In Las Vegas!

Of course, Lopez was the biggest star on the bill at the Planet Hollywood Hotel & Resort in Vegas, though it seemed she had competition from one particular fame-loving celebrity. Coco Austin - the glamour model and actress who could give J'Lo a run for her money in the derriere department - wore a skin-tight multi-coloured lycra number and 'worked it' for the cameras. Ice T's girlfriend posed up a storm on the red-carpet, though she failed to match the smouldering sex-appeal of Lopez.

Coco Austin, Parker Premiere, Las VegasCoco Austin Made It Her Mission To Be Center Of Attention At The Planet Hollywood Hotel & Casino In Las Vegas!

Though Lopez and Coco Austin were the focus of many photographer's cameras, there was a pretty impressive supporting cast at the Parker premiere. Remember Holly Madison? Yep, Hugh Hefner's former girlfriend is now pregnant with her first child, but braved the January conditions to step out and debut her baby bump.

The former Peep Show star - who is no stranger to Sin City - is around 2 months from her due date and was glowing on the red-carpet on Thursday. She probably wasn't too pleased to learn that former Playmate Of The Year Claire Sinclair had opted for a similiar red-dress! Sinclair left little to the imagination in a revealing skin-tight creation, smiling enthusiastically for the cameras. 

Holly Madison, Parker Premiere, Las VegasClaire Sinclair, Parker Premiere, Las Vegas

Ladies In Red! Holly Madison And Claire Sinclair Opted For Similiar Creations

Check out our footage from the 'Parker' premiere below, where Claire Sinclair worked it for the cameras while fans watched from behind the barriers. We also have a clip from the exclusive Parker screening at the Museum of Modern Art in New York. On that occasion, J'Lo wore an elegant cream winter coat with white stilletos: but which of her two looks look do you prefer?

Watch Claire Sinclair At The Parker Premiere:

Watch Jennifer Lopez Arriving At The Parker Screening In New York: