Hailey and Justin Bieber host a star-studded party at their Beverly Hills mansion

Hailey and Justin Bieber threw a star-studded party at their $8.5 million Beverly Hills mansion on Sunday evening.

The hosts and guests let loose while appearing to ditch social distancing rules, despite repeated warnings from Los Angeles mayor Eric Garcetti regarding large social gatherings across the city. 

Model Hailey, 23, mixed style with comfort as she went barefoot, while musician Justin, 26, ensured partygoers let their hair down as he carried a bottle of wine into his lavish home. 

Having fun: The hosts and guests let loose while appearing to ditch social distancing rules

Living it up: Barefoot Hailey Bieber (L) and her husband Justin (R) threw a star-studded party at their $8.5 million Beverly Hills mansion on Sunday evening 

The daughter of actor Stephen Baldwin cut a typically stylish figure as she teamed a strapless top with trendy denim shorts.

While swapping her signature heels for no footwear, the blonde beauty accessorised with dainty jewellery and wore her tresses in a half up half down style.

Singer Justin, meanwhile, stood out in patterned PJ-style co-ords, which he dressed down with white socks, sliders and a navy baseball cap worn backwards.  

The media personality was every inch the warm host as he greeted attendees with hugs and provided alcoholic beverages.

Merry: Musician Justin, 26, ensured partygoers let their hair down as he carried a bottle of wine into his lavish home

Merry: Musician Justin, 26, ensured partygoers let their hair down as he carried a bottle of wine into his lavish home

Hi there: The singer was every inch the warm host as he greeted attendees with hugs (pictured with Kylie Jenner) and provided alcoholic beverages

Hi there: The singer was every inch the warm host as he greeted attendees with hugs (pictured with Kylie Jenner) and provided alcoholic beverages

Kooky style: The media personality stood out in patterned PJ-style co-ords, which he dressed down with white socks, sliders and a navy baseball cap worn backwards

Kooky style: The media personality stood out in patterned PJ-style co-ords, which he dressed down with white socks, sliders and a navy baseball cap worn backwards

Here they come: Despite the ongoing threat, Kendall (pictured) and Kylie Jenner were in high spirits as they climbed from their chauffeur driven vehicles

Make way: The siblings were among the first arrivals at the exclusive address

Here they come: Despite the ongoing threat, Kendall (L) and Kylie Jenner (R) were in high spirits as they climbed from their chauffeur driven vehicles

Gatherings of any sizes that contain people from different households are prohibited under Los Angeles County’s health order for COVID-19, with Garcetti previously vowing to cut off utilities in three LA homes for hosting house parties ‘in violation of public health orders’ as California continues reel from the impact of the virus. 

More than 2,000 Los Angeles residents have so far lost their lives to the highly contagious virus, from 170,000 fatalities across the United States.  

But despite the ongoing threat, Kendall and Kylie Jenner were in high spirits as they climbed from their chauffeur driven vehicles and made their way inside their pal’s 6,132-square-foot Monterey Colonial home. 

Opting for a printed off-the-shoulder top and high slung leather trousers, Kendall, 24, drew attention to her supermodel physique as she gave onlookers the thumb’s up. 

The statuesque star added to her look with a pair of stiletto heeled boots, while a tasteful handbag proved to be her only visible accessory.  

Looking good: Opting for a printed off-the-shoulder top, Kendall, 24, drew attention to her supermodel physique

Fashion first: The model also wore a pair of high slung leather trousers

Looking good: Opting for a printed off-the-shoulder top, Kendall, 24, drew attention to her supermodel physique

Working it: The statuesque star added to her look with a pair of stiletto heeled boots, while a tasteful handbag proved to be her only visible accessory

Working it: The statuesque star added to her look with a pair of stiletto heeled boots, while a tasteful handbag proved to be her only visible accessory

In keeping with the party’s low key setting sister Kylie, 23, teamed her own off-the-shoulder top with a pair of casual boot cut jeans. 

The cosmetics entrepreneur completed her look with stylish heels, while rich make-up drew further attention to her instantly recognisable features. 

Other guests attending the event included Jaden Smith model Winnie Harlow, who caught the eye in a blue gym vest and matching leggings as she made her way inside the property.  

Familiar face: Other guests to attend the event included model Winnie Harlow, who caught the eye in a blue gym vest and matching leggings as she made her way inside the property

Relaxed: The Canadian star added to her look with a pair of white running shoes, while a black face mask partially covered her features

Familiar face: Other guests to attend the event included model Winnie Harlow, who caught the eye in a blue gym vest and matching leggings as she made her way inside the property

Plenty to talk about: Canadian star Justin chatted with Kendall as they relaxed outside the house

Plenty to talk about: Canadian star Justin chatted with Kendall as they relaxed outside the house

The Canadian star added to her look with a pair of white running shoes, while a black face mask partially covered her features.  

With the threat of COVID-19 still palpable across Los Angeles, Winnie appeared to be the only guest wearing a mask as she rubbed shoulders with her celebrity friends.  

The party comes amid ongoing controversy regarding the potential threat house parties pose to public health. 

It’s understood that Los Angeles mayor Garcetti is looking to cutting the power to at least three massive homes for violating coronavirus-related rules against social gatherings, according to local officials.

Social distancing, Hollywood style: Guests were shoulder to shoulder as they tucked into food outside at Justin's home

Social distancing, Hollywood style: Guests were shoulder to shoulder as they tucked into food outside at Justin’s home 

Safety: Winnie appeared to be the only guest wearing a mask as she entered the prroperty on Sunday evening

Safety: Winnie appeared to be the only guest wearing a mask as she entered the prroperty on Sunday evening

Safety: Winnie appeared to be the only guest wearing a mask as she entered the property on Sunday evening

One of the houses, located in the city’s Central Division, refused to adhere to initial warnings and received a follow-up notice on the same night.

Police would not provide an address for the home but have forwarded the address to Garcetti’s office to have the utilities shut off, the Los Angeles Times reports. 

The announcement followed a huge house party that took place at a mansion on Mulholland Drive on August 3 and ended in a fatal shooting.

Special guest: Jaden Smith (right) was also seen making an entrance at Bieber's exclusive house party

Special guest: Jaden Smith (right) was also seen making an entrance at Bieber’s exclusive house party 

Police did not have a specific number of homes that had received citations or warnings, but citations were also issued at six parties in Hollywood, two in West L.A. and ones in Wilshire, Hollenbeck and the West Valley divisions.

Some question the role police should play in shutting down the parties, including a police union representing rank-and-file officers.

Los Angeles Police Chief Michel Moore said that they are in agreement with health officials in their determining that parties should not be occurring during the pandemic.

He added that police would continue citing those who showed a ‘blatant disregard’ for the rules.