Addicted to style! Gwyneth Paltrow and Pink rock monochromatic frocks at premiere of obsessional 'dramedy' Thanks for Sharing

Their characters wrestle with addictions to sex and exercise, respectively, in Thanks for Sharing.

And co-stars Gwyneth Paltrow and Pink looked ladylike in their monochromatic frocks at the Hollywood premiere Monday.

The Oscar winner - who turns 41 this month - looked preppy and polished in white sleeveless dress featuring pockets.

Playing addicts: Thanks for Sharing co-stars Pink and Gwyneth Paltrow looked ladylike in their monochromatic frocks at the Hollywood premiere Monday

The Vespa daredevil rocked a red lip and black stilettos and she wore her shiny blonde locks down.

The sex addiction dramedy - hitting theatres September 20 - also features Mark Ruffalo, Tim Robbins, Josh Gad, and Carol Kane.

As Phoebe, Gwyneth over-exercises and shows signs of an eating disorder while navigating a new relationship with sex addict (Ruffalo).

White hot: The Oscar winner - who turns 41 this month - looked preppy and polished in white sleeveless dress featuring pockets

Batting her lashes: The Vespa daredevil rocked a red lip and black stilettos and she wore her shiny blonde locks down

Earlier in the day, Paltrow admitted to smoking the occasional cigarette in a taped an appearance on Chelsea Lately.

'You're a sex addict,' the E! talk show host said.

Gwyneth replied: 'Well, basically I was a really normal person, and then I started hanging out with you all the time.'

'Do you guys like my dress? It's really comfortable': The 34-year-old pop star covered her muscular, tattooed figure in an off-the-shoulder cobalt blue gown

Married couple: The three-time Grammy winner - born Alecia Moore - was joined by her husband Carey Hart

PDA pair: The professional motocross racer tweeted a snap and said he was 'so proud of her'

'With the amazing Kate Lee beating my face into submission': Pink tweeted two pre-premiere pictures of herself getting ready for her big night

When Chelsea accused her gal pal of being naked through the film, the Shakespeare in Love actress corrected her: 'Well, almost.'

Not seen with the yoga-toned star was her husband of a decade, Coldplay frontman Chris Martin.

The Royal Tenenbaums actress and the 35-year-old Englishman have two children - nine-year-old daughter Apple and seven-year-old son Moses.

Yoga-toned body: When Chelsea Handler accused her gal pal of being naked through the film, the Shakespeare in Love actress corrected her: 'Well, almost'

Onscreen couple: As Phoebe, Gwyneth over-exercises and shows signs of an eating disorder while navigating a new relationship with sex addict (Mark Ruffalo)

Coming out September 20: In Thanks for Sharing, the So What hitmaker is excellent as Dede, a hairdresser and sex addict attempting a platonic friendship (Josh Gad)

Meanwhile, the 34-year-old pop star covered her muscular, tattooed figure in an off-the-shoulder cobalt blue gown.

The three-time Grammy winner - born Alecia Moore - tweeted two pre-premiere pictures of herself getting ready.

'Do you guys like my dress?' Pink wrote to her 19.5 million followers. 'It's really comfortable. I'm super excited right now - and that's my best serious face.'

The ladies' co-star: The Book of Mormon funnyman, 32, dressed up in a black suit and blue dress shirt for the red carpet

Meet the press: Gwyneth, Pink, and Josh spent their morning sitting at a press conference at the Four Seasons alongside co-star Tim Robbins (L)

Her motocross racer husband Carey Hart tweeted: 'So proud of her.'

In Thanks for Sharing, the So What hitmaker is excellent as Dede, a hairdresser and sex addict attempting a platonic friendship (Gad).

Pink previously acted in the 2007 horror flick Catacombs and the animated sequel Happy Feet Two.

Mothers and actresses: Also at the Arclight Cinemas were Bryce Dallas Howard in a peacock mini-dress and Jane Seymour in a sheer-paneled LBD

Lady in red: Model Rebecca Romijn, 40, was ravishing in a red blazer, sheer top, and black leather trousers

The ladies' co-star Josh Gad, 32, dressed up in a black suit and blue dress shirt for the red carpet.

The Book of Mormon funnyman will next play outrageous comedian Sam Kinison in a biopic directed by Larry Charles.

Josh, Gwyneth, and Pink spent their morning sitting at a press conference at the Four Seasons alongside co-star Tim Robbins.

Prominent eyebrows run in the family: Actor Peter Gallagher brought along his 19-year-old daughter, singer Kathryn Gallagher to the glitzy premiere

Teen idols: Also rocking a sheer LBD was Disney Channel starlet Katherine McNamara while Nickelodeon star Jack Griffo suited up

Also at the Arclight Cinemas were Bryce Dallas Howard in a peacock mini-dress and Jane Seymour in a sheer-paneled LBD.

Model Rebecca Romijn, 40, was ravishing in a red blazer, sheer top, and black leather trousers.

Peter Gallagher, 58, brought along his 19-year-old daughter, singer Kathryn Gallagher to the glitzy premiere.

Also rocking a sheer LBD was Disney Channel starlet Katherine McNamara while Nickelodeon star Jack Griffo suited up.