Jesy Nelson shows off slimmer figure in bandage dress as Little Mix celebrate number one single

Someone's feeling confident: Jesy Nelson shows off slimmer figure in bandage dress as Little Mix celebrate number one single

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UPDATED:

09:26 GMT, 4 September 2012

After achieving their second number one single, Little Mix headed out for a big night on the town to celebrate until the early hours of the morning.

The girls may be relatively new to the fame game but they certainly dressed like seasoned professionals on Monday night.

Leading the way was the newly confident and slimmed down Jesy Nelson, 21, who decided to show off her reduced figure.

New look: Jesy Neslon stepped out in a lime green bandage dress as she partied, last night, at The Rose Club, in London,

New look: Jesy Neslon stepped out in a lime green bandage dress as she partied, last night, at The Rose Club, in London,

Jesy wore an attention grabbing lime green bandage dress as she partied it up with the rest of the girls at The Rose Club, in London.

The brunette, who was targeted by internet trolls over her weight during the X Factor live shows, looked comfortable in the tight fitting dress as she left the popular nightspot.

Unfortunately she was out done in the fashion stakes by band member Jade Thirlwall, 19, who shone in a white dress.

The coolest: Jade Thirlwall looked amazing in her white dress with a purple tint in her hair

The coolest: Jade Thirlwall looked amazing in her white dress with a purple tint in her hair

The Tyne and Wear-born star looked every inch a pop star in the extremely tight frock which she teamed with a pair of red shoes and matching clutch bag.

Perrie Edwards also upped the ante in a cool outfit that featured a leopard skin print shirt and a short white apron dress.

Leigh-Anne Pinnock, 19, kept in line with the other two girls and also wore white as she stepped out in a sparkly play suit.

Style queen: Blonde Perrie Edwards showed off her legs in a short apron dress with a leopard print top that featured a Peter Pan collar

Style queen: Blonde Perrie Edwards showed off her legs in a short apron dress with a leopard print top that featured a Peter Pan collar

Style queen: Blonde Perrie Edwards showed off her legs in a short apron dress with a leopard print top

Young at heart: Leigh-Anne Pinnock also sported the colour white as she wore a sparkly sleeveless playsuit

Young at heart: Leigh-Anne Pinnock also sported the colour white as she wore a sparkly sleeveless playsuit

The X Factor winners went to the number one spot with their second single Wings, and earlier celebrated their chart success with a performance of the hit track on the revamped ITV morning show Daybreak.

Leigh-Anne said of the performance: 'It’s a nice way of celebrating being number one. We're going to have a party tonight with family and friends, but we can't believe it.'

And the girls' Daybreak concert came as they announced their plans for their debut headline tour – set to kick off in January 2013.

Party time: The girls celebrated their number one single by performing on Daybreak, before heading to the club in the evening

Party time: The girls celebrated their number one single by performing on Daybreak, before heading to the club in the evening

The 20-date tour will see the band perform in locations including London, Dublin and Glasgow, with tickets going on sale on 7th September.

Following their raucous night out, Jade got tweeted: 'The #littlemixnumber1party was amazing! Just got in bed! Nanite little mixers xxjadexx'. (sic)