License to frill! Courtney Love and Elizabeth Olsen dazzle as they rock ruffles at Sean Penn's Haiti fundraiser

It may be a serious event, but Courtney Love still knows how to make an impact on the red carpet.

The 52-year-old had a licence to frill in a ruffle-trimmed red Gucci outfit at the 6th Annual Sean Penn & Friends Haiti Rising Gala Benefit in Los Angeles.

And clearly frills were the fashion orders of the night as Elizabeth Olsen showcased her stunning figure in a feminine frill and lace gown.

Ruffled: Courtney Love still knows how to make an impact on the red carpet and Elizabeth Olsen showcased her stunning figure in a feminine frill and lace gown

Elizabeth arrived at the Montage Hotel in the peach and black outfit which layered over silk palazzo pants. 

It featured a black belt cinched at her slim waist, and a striking lace train. 

The beauty wore her honey tresses in loose waves and a side-parting.  

Luxurious: Elizabeth arrived at the Montage Hotel in the peach and black outfit which layered over silk palazzo pants

Look lovely in a lace slipdress like Elizabeth

Sean Penn brought a few of his celebrity friends to his annual Haiti Rising Benefit Gala in LA with a guest list than included Courtney Love, Lily Collins, Rachel Zoe and Diane Kruger.

Also in attendance was Elizabeth Olsen who wore a pajama inspired outfit by Jean Paul Gaultier for the upscale event.

The lace trimmed slipdress was covered in a beautiful butterfly print and it had a dramatic train flowing in the back. Elizabeth teamed it with a pair of silky striped trousers, but we'd just as soon wear it with bare legs and a pair of nude stilettos.

The lingerie look is still a hot commodity these days and if you'd like to get in on the trend, shop the edit below for styles from Parker, Guess, Moon River and A by Amanda.

* PRICES MAY NOT BE AS ADVERTISED

Striking: It featured a black belt cinched at her slim waist, and a lace train

She added a cappuccino lip-colour as she flaunted her flawless complexion. 

Lily Collins joined them at the event - walking her third red-carpet in the day. 

The 27-year-old actress wore all black - teaming a strapless Zuhair Murah jumpsuit featuring velvet tuxedo trousers, with a satin stripe, with vertiginous Louboutin heels.

Fund-raiser: Courtney joined the 27-year-old actress, who wore an all black strapless Zuhair Murah jumpsuit

Elegant: Her outfit featured velvet tuxedo trousers with a satin side stripe

Updo: She flashed her tattoo as she wore her hair in a severe sleek bun

Raising money: Event host Sean Penn had cobbled together mismatched black clothing, without a tie alongside Lily

The daughter of Phil Collins posed alongside event host Sean Penn, who had cobbled together mismatched black clothing, without a tie.

The 56-year-old actor's charity has pumped millions of dollars into relief efforts in Haiti as it helps to rebuild the country after the disaster that claimed an estimated 160,000 lives in 2010.

The stars turned out in force to support his 6th fundraiser which was hosted by Bill Maher.

Fashionista: Rachel Zoe, 45, brought her trademark boho style to the event in a shoulderless maxi dress with embroidered flower detail alongside Rodger Berman

Night out: Newly single Diane Kruger, 40, chose a black Elie Saab jumpsuit

Stepping out: Lily and Diane both chose black jumpsuits

Handsome: Jeremy Renner jazzed up a well-tailored three-piece suit with an embroidered rose while Jason Segel, 36, wore a blue suit and battered footwear

Need a lift up? Patricia Arquette was dwarfed by her male companion

Beautiful: Connie Britton and Sophia Bush posed on the red carpet

Couple: Edward Norton and Shauna Robertson also attended

Mum night out: Pamela Anderson (L) attended with her son Brandon Thomas Lee, 20

Family: Dylan Penn, 25, was on hand to support her father

Rachel Zoe, 45, brought her trademark boho style to the event in a shoulderless maxi dress with embroidered flower detail.

Newly single Diane Kruger, 40, looked stylish in a black Elie Saab jumpsuit.

She split from long-term partner Joshua Jackson last July.

Jeremy Renner jazzed up a well-tailored three-piece suit with an embroidered rose.

Jason Segel, 36, wore a blue suit and battered footwear.

They were joined by stars Patricia Arquette, Connie Britton, Edward Norton and Jeffrey Tambor. 

Dylan Penn, 25, was on hand to support her father.

Meanwhile, Pamela Anderson attended with her son Brandon Thomas Lee, 20.

Close? Elizabeth and Jeremy were snapped together, after earlier rumours of a romance

Supporters: Jeffrey Tambor and Kasia Ostlun were also on hand to boost the fundraiser

On stage: Bill Maher emceed the event

Attentive: Lily looked elegant as she took her seat after a busy day

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now