Why so glum? Hailey Baldwin struggles to raise a smile as she shows off her trim pins in VERY short dress as blonde attends ModelCo product launch in Sydney

Hailey Baldwin made sure she was the centre of attention on Monday morning. 

The stunning blonde showed off her trim pins in a short dress as she attended the launch of her ModelCo product range at Sydney's Rose Bay. 

Daughter of Hollywood actor Stephen Baldwin, the American showed just why the Australian beauty brand enlisted her as their latest glamorous ambassador. 

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Leg day: Hailey Baldwin made sure she was the centre of attention on Monday morning in a short dress that showed off her slender legs 

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The former flame of Justin Bieber radiated beauty as she posed for photos in the short, sparkly number. 

The 20-year-old's single-shoulder dress sparkled pink, silver and white as it showed off her slender legs. 

Wearing her blonde locks in a high ponytail, the Arizona native complemented her outfit with a pair of gold strappy heels. 

Why so glum: The blonde beauty struggled to raise a smile as she strolled into the event 

Jet-lagged? Hailey appeared a little on the tired side as she strolled into the morning event 

Hailey accessorised with a pair of hoop earrings and a number of rings to add to her glamorous aesthetic. 

However, Hailey struggled to raise a smile as she strolled into the event, appearing downcast as she was followed by her entourage. 

She managed to perk up once inside though, expertly posing for the cameras.   

Little guy: She perked up when she spied a cute little dog outside of the event 

The beauty was also pictured embracing another striking female during the photo shoot.  

After arriving in the country on Sunday, Hailey has had a whirlwind 24 hours. 

The blonde attended a yacht party yesterday before she was pictured heading into a religious gathering at Hillsong Convention Centre.  

Turning her frown upside down: Once inside the event, Hailey perked up and turned it on for the cameras  

Fashionista: The former flame of Justin Bieber radiated beauty as she posed for photos in the short, sparkly number

Famous father: Daughter of Hollywood actor Stephen Baldwin, the American showed just why the Australian beauty brand enlisted her as their latest glamorous ambassador

Ring leader: Hailey accessorised with a pair of hoop earrings and a number of rings to add to her glamorous aesthetic

Making friends: The beauty was also pictured embracing another striking female during the photo shoot

Hailey is in the country to promote her range of ModelCo products, which supply cosmetics for eyes, lips, face and body. 

The American told Confidential on Sunday that both the brand and the country were a natural fit for her. 

She said: 'If I am collaborating with a company it's because I personally use their stuff and enjoy their products.

'Brands that come out of Australia are amazing. There are a lot of Australian clothing brands I enjoy. I just think the aesthetic of Australia is really cool.'

She follows in the footsteps of Rosie Huntington-Whiteley, Cheyenne Tozzi and Elle Macpherson, who have all been ModelCo brand ambassadors. 

Deep in thought: Hailey spoke to the awaiting press as she walked the red carpet

Promo: Hailey is in the country to promote her range of ModelCo products, which supply cosmetics for eyes, lips, face and body

The launch also attracted a number of other glamorous, high-profile attendees, including swimsuit model Natalie Roser. 

The blonde beauty rocked up to the bash in a creation of her own design, sporting a Roser The Label playsuit that showed off her enviable figure. 

Wearing her hair in a similar style to Hailey, the model complemented her purple ensemble with a pair of crochet heels. 

Guest list: The launch also attracted a number of other glamorous, high-profile attendees, including swimsuit model Natalie Roser

Own brand: The blonde beauty rocked up to the bash in a creation of her own design, sporting a Roser The Label playsuit that showed off her enviable figure

E! Australia's Ksenija Lukich exuded class in a shoulder-less pant suit that showed off her trim pins. 

The newly married TV presenter wore her brunette locks in a middle parting as she let them flow over her toned torso. 

She accessorised with a pair of black strappy heels, a bracelet and a sparkly ring.  

Sleek: E! Australia's Ksenija Lukich exuded class in a shoulder-less pant suit that showed off her trim pins

Brunette beauty: The newly married TV presenter wore her brunette locks in a middle parting as she let them flow over her toned torso

Also in attendance was a causal-looking Pia Muehlenbeck, who opted to offer a glimpse of her ample assets in a button-down shirt. 

The Instagram model paired the white shirt with black jeans and a striking choker necklace. 

A tanned-looking Pia wore her short brown locks down as she posed with sunglasses in hand. 

Peep show: A causal-looking Pia Muehlenbeck opted to offer a glimpse of her ample assets in a button-down shirt

Meanwhile, singer Casey Burgess and model Eloise Morris donned short dresses in the theme of Hailey. 

The outfits were strikingly similar in design - although Casey's black leather number featured a belt and zip. 

Brunette Eloise looked pristine in her crisp white dress while she added a bit of colour with a pair of red heels.  

White on: Eloise Morris looked pristine in her crisp white dress while she added a bit of colour with a pair of red heels while Casey Burgess donned an all-black ensemble 

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