Sonia Kruger stuns fans as she flaunts age-defying figure in a skintight $1,500 designer mini dress

Sonia Kruger, 55, looks half her age as she flaunts her incredibly youthful figure and visage in a skintight $1,500 designer mini dress during the premiere of Big Brother Australia

Big Brother Australia returned with a bang on Monday night. 

And during the show’s highly-anticipated premiere, host Sonia Kruger absolutely stunned fans in a series of gorgeous outfits. 

The 55-year-old first turned heads as she put her age-defying figure on display in a skintight Balmain mini dress, which costs approximately $1,500.

‘You look amazing’: Sonia Kruger, 55, stunned fans on Monday night as she flaunted her age-defying figure in a skintight $1,500 designer minidress during the premiere of Big Brother Australia

Sonia purchased the frock from designer website Yoox and it features a high neck, long sleeves and an eye-catching black and silver striped design.

Sonia’s chic look was completed with her short locks out and neatly straightened, and makeup including dewy foundation, a glossy pink lip and a smokey eye.

The blonde bombshell and mother-of-one added height to her frame in a pair of silver heels. 

Dolled up: Sonia's chic look was completed with her short locks out and neatly straightened and makeup including dewy foundation, a glossy pink lip and a smokey eye

Dolled up: Sonia’s chic look was completed with her short locks out and neatly straightened and makeup including dewy foundation, a glossy pink lip and a smokey eye

Loving it: 'You look amazing,' The Voice singer Alfie Alcuri commented underneath Sonia's post on Instagram. Sonia also received a series of flame or hot emojis under her post from a bunch of fans

Loving it: ‘You look amazing,’ The Voice singer Alfie Alcuri commented underneath Sonia’s post on Instagram. Sonia also received a series of flame or hot emojis under her post from a bunch of fans

‘You look amazing,’ The Voice singer Alfie Alcuri commented underneath Sonia’s post on Instagram.

Sonia also received a series of flame or hot emojis under her post from a bunch of fans. 

Another added: ‘[It] also marks the return of my wardrobe envy for all of your outfits! Starting with this dress.’

Sonia shared her outfit details on Instagram and captioned her post: ‘Who’s ready to play? Big Brother starts tonight.’

At the end of the episode, Sonia changed into a bright red one-shoulder jumpsuit, which was teamed with a black and gold Valentino belt. 

Red hot: At the end of the episode, Sonia changed into a bright red one-shoulder jumpsuit, which was teamed with a black and gold Valentino belt

Red hot: At the end of the episode, Sonia changed into a bright red one-shoulder jumpsuit, which was teamed with a black and gold Valentino belt

Sonia recently revealed the secrets to her incredible figure, telling The Courier Mail that she focuses on good nutrition and exercises regularly.

She revealed that she eats vegetables, salads and protein but has the occasional treat.

She explained it’s important to have everything in moderation and consume foods that are nutritious. 

How she does it: Sonia recently revealed the secrets to her incredible figure, telling The Courier Mail that she focuses on good nutrition and exercises regularly

How she does it: Sonia recently revealed the secrets to her incredible figure, telling The Courier Mail that she focuses on good nutrition and exercises regularly

‘You have got to give yourself little treat days and there is absolutely nothing wrong with that,’ she said. 

When it comes to exercise, Sonia revealed she loves to do a workout at home in the morning.

‘Then you’re done and you’ve got it out of the way and you don’t have to worry about going to the gym and being seen by people in public,’ she explained.

The TV presenter also admitted she’s not a huge fan of exercise but ‘likes the way she feels afterwards’.

Big Brother continues Tuesday at 7.30pm on Channel Seven. 

Her approach: 'You have got to give yourself little treat days and there is absolutely nothing wrong with that,' she said. When it comes to exercise, Sonia revealed she loves to do a workout at home in the morning

Her approach: ‘You have got to give yourself little treat days and there is absolutely nothing wrong with that,’ she said. When it comes to exercise, Sonia revealed she loves to do a workout at home in the morning