As the heiress daughter of TopShop owner Sir Philip Green, Chloe should really have her finger on the fashion pulse.

So it comes as something of a surprise to see the 20-year-old step out last night in the Mary Katrantzou for Topshop dress of the season - days after several celebrities have already been seen wearing it.

Alesha Dixon, model Poppy Delevigne and Chloe's former Made in Chelsea co-star Amber Atherton are just three of the stars who have donned the colourful dress in recent weeks.

Shouldn't you be ahead of the fashion game? Chloe Green last night stepped out in the £350 Mary Katrantzou for Topshop dress that has proved a major hit in the celebrity world
Shouldn't you be ahead of the fashion game? Chloe Green last night stepped out in the £350 Mary Katrantzou for Topshop dress that has proved a major hit in the celebrity world

Shouldn't you be ahead of the fashion game? Chloe Green last night stepped out in the £350 Mary Katrantzou for Topshop dress that has proved a major hit in the celebrity world

Fashion friends: Chloe attended the Sony BRIT Awards afterparty with Alexandra Burke

Fashion friends: Chloe attended the Sony BRIT Awards afterparty with Alexandra Burke

 

Chloe donned the £350 printed dress as she headed out to the Sony BRIT Awards afterparty with pal Alexandra Burke at the Arts Club in London.

She teamed the dress with a pair of black suede ankle boots and a pink snakeskin clutch bag.

Earlier in the evening, Chloe had tweeted: 'Heading to the Brits wearing Mary Katrantizou. for @Topshop!! Looking forward to tonight! Xx'

Prints charming: Alesha Dixon, pictured at Britain's Got Talent auditions, model Poppy Delevigne at the Elle Style awards and Amber Atherton at London Fashion Week are all fans of the dress
Prints charming: Alesha Dixon, pictured at Britain's Got Talent auditions, model Poppy Delevigne at the Elle Style awards and Amber Atherton at London Fashion Week are all fans of the dress
Amber Atherton

Prints charming: Alesha Dixon, pictured at Britain's Got Talent auditions, model Poppy Delevigne at the Elle Style awards and Amber Atherton at London Fashion Week are all fans of the dress

 

And after a successful night of partying, Chloe wrote on her Twitter page: 'Such a fun night!!!! #BRITS Home and in bed! Finally! Goodnight world let's see what tomorrow brings! Xx'

The colourful dress, which features a high-neck and lampshade-style skirt, has already sold out in stores and online, after it was worn by Alesha at the Britain's Got Talent auditions, Poppy at the Elle Style Awards and Amber on the front row of Fashion East.

Little Mixing it up: X Factor winners Little Mix also put in an appearance at the Sony afterparty

Little Mixing it up: X Factor winners Little Mix also put in an appearance at the Sony afterparty

 

Here come the boys: Award winners One Direction, who took home the single award for What Makes You Beautiful, continued the party at the Arts Club

Here come the boys: Award winners One Direction, who took home the single award for What Makes You Beautiful, continued the party at the Arts Club

 

Greeting the guests: Niall posed up with Alexandra and Chloe, before making friends with Dancing On Ice's Christine Bleakley and Louie Spence
Greeting the guests: Niall posed up with Alexandra and Chloe, before making friends with Dancing On Ice's Christine Bleakley and Louie Spence

Greeting the guests: Niall posed up with Alexandra and Chloe, before making friends with Dancing On Ice's Christine Bleakley and Louie Spence

Talking about the collaboration recently, Mary said: 'It's very exciting to work with Topshop for our third range together.

'They've been so supportive of my work from the very beginning and this range will be the most ambitious one we've done and the most fun!

Date night: JLS' Marvin Humes arrived at the Sony party with fiancée Rochelle Wiseman, while JB Gill was accompanied by girlfriend Chloe Tangney
Date night: JLS' Marvin Humes arrived at the Sony party with fiancée Rochelle Wiseman, while JB Gill was accompanied by girlfriend Chloe Tangney

Date night: JLS' Marvin Humes arrived at the Sony party with fiancée Rochelle Wiseman, while JB Gill was accompanied by girlfriend Chloe Tangney

Enjoying yourselves? Louis Walsh was joined at the afterparty by Jackie St Clair

Enjoying yourselves? Louis Walsh was joined at the afterparty by Jackie St Clair

 

Posing up: Juliette Lewis seen outside the Arts Club, while Victoria Justice and Rita Ora smiled for photographers inside
Posing up: Juliette Lewis seen outside the Arts Club, while Victoria Justice and Rita Ora smiled for photographers inside
Posing up: Juliette Lewis seen outside the Arts Club, while Victoria Justice and Rita Ora smiled for photographers inside

Posing up: Juliette Lewis seen outside the Arts Club, while Victoria Justice and Rita Ora smiled for photographers inside

'My idea behind the collaboration was to design for the Topshop girl a range that is as close to the aesthetic of my mainline as possible, with great control over the quality of design and production.

'I can't wait to see the Topshop girls in the bowl dresses and for the most daring to see them try the print on print layering!'

Famous family: Earlier in the evening, Chloe had attended the London Fashion Week Autumn/Winter 2012 reception at 10 Downing Street with her father Sir Phillip Green

Famous family: Earlier in the evening, Chloe had attended the London Fashion Week Autumn/Winter 2012 reception at 10 Downing Street with her father Sir Phillip Green

VIDEO: Famous faces arrive for the Downing Street LFW Autumn/Winter 2012 reception