Christine Rendon For Dailymail.com

She may be best known for her glamorous runway appearances.

But Alessandra Ambrosio was wearing a different kind of killer look as she attended a Halloween party in Brentwood on Tuesday.

The model, 36, transformed into a skeleton as she wore a bones-themed onesie and  some pale white face paint with black eye shadow and lipstick. 

That's a killer look! Alessandra Ambrosio transformed into a skeleton as she wore a bones-themed onesie and some pale white face paint with black eye shadow and lipstick

That's a killer look! Alessandra Ambrosio transformed into a skeleton as she wore a bones-themed onesie and some pale white face paint with black eye shadow and lipstick

That’s a killer look! Alessandra Ambrosio transformed into a skeleton as she wore a bones-themed onesie and some pale white face paint with black eye shadow and lipstick

Even though she ditched her regular attire and had covered up her complexion with plenty of makeup, Alessandra still turned heads as she threw herself into character.

She was also spotted out with her five-year-old son, Noah, who was sweetly dressed into a warrior outfit. 

By this point, though, she had ditched the white face paint.  

Alessandra had her velvet black hood thrown over her head as she led the way for her little boy and carried his bag. 

Mom and son: She was also spotted out with her son, Noah, who was sweetly dressed into a warrior outfit

Mom and son: She was also spotted out with her son, Noah, who was sweetly dressed into a warrior outfit

Mom and son: She was also spotted out with her son, Noah, who was sweetly dressed into a warrior outfit

Trick or treat! Even though she had ditched the runway-ready attire, Alessandra still turned heads as she threw herself into character in her look

Trick or treat! Even though she had ditched the runway-ready attire, Alessandra still turned heads as she threw herself into character in her look

Trick or treat! Even though she had ditched the runway-ready attire, Alessandra still turned heads as she threw herself into character in her look

Trick or treat! Even though she had ditched the runway-ready attire, Alessandra still turned heads as she threw herself into character in her look

Trick or treat! Even though she had ditched the runway-ready attire, Alessandra still turned heads as she threw herself into character in her look

Have a bone to pick! The catwalk queen was glued to her phone as she strolled about the bash in her skeleton outfit

Have a bone to pick! The catwalk queen was glued to her phone as she strolled about the bash in her skeleton outfit

Have a bone to pick! The catwalk queen was glued to her phone as she strolled about the bash in her skeleton outfit

Suiting up! Back at the bash, Alessandra's fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man

Suiting up! Back at the bash, Alessandra's fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man

Suiting up! Back at the bash, Alessandra's fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man

Suiting up! Back at the bash, Alessandra's fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man

Suiting up! Back at the bash, Alessandra’s fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man

Back at the bash, Alessandra’s fiance Jamie Mazur was getting into the Halloween spirit by dressing up as Spider-Man.  

‘Halloween morning’, she captioned a snap of themselves, along with a ghost and skull emoji.

Not pictured was Alessandra and Jamie’s eldest child, their nine-year-old daughter Anja. 

That's her superhero! Alessandra's beau  rocked the party in his muscly costume

That's her superhero! Alessandra's beau  rocked the party in his muscly costume

That’s her superhero! Alessandra’s beau rocked the party in his muscly costume

Meanwhile: Not pictured was Alessandra and Jamie's eldest child, their nine-year-old daughter Anja

Meanwhile: Not pictured was Alessandra and Jamie's eldest child, their nine-year-old daughter Anja

Meanwhile: Not pictured was Alessandra and Jamie’s eldest child, their nine-year-old daughter Anja

The bash was certainly a welcome break for Alessandra, who is currently in Victoria’s Secret Fashion Show training mode.

The star has been working out a relentless four to five days a week ahead of the telecast, which will be taking place November 28 in Shanghai.

‘I have been working with Tracy [Anderson] for last couple years, and what I love about her classes that it does not feel like exercise,’ she told Bravo earlier this month.

‘It’s almost like taking a fun dance class that targets all of your muscle groups, and you get amazing results…she also has online classes, so when I travel, I am able to work out in my hotel room.’

The catwalk queen has been modelling for the brand since 2001. 

Her little warrior! Noah followed his mother in his black and gold uniform 

Her little warrior! Noah followed his mother in his black and gold uniform 

Her little warrior! Noah followed his mother in his black and gold uniform 

Teamwork! Alessandra took to Instagram to share a snap of herself with Jamie, dressed in their costumes at the bash 

Teamwork! Alessandra took to Instagram to share a snap of herself with Jamie, dressed in their costumes at the bash 

Teamwork! Alessandra took to Instagram to share a snap of herself with Jamie, dressed in their costumes at the bash 

 

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