Slimmed-down Rebel Wilson and Aussie stars celebrate Halloween

Rebel Wilson thrilled her fans this weekend with another image that showed off her amazing 20 kilogram weight loss.

The Australian actress, who is now based in the United States, looked incredible in a semi-sheer black dress and spooky face makeup, as she joined other Aussie stars in celebrating Halloween on Instagram. 

'Haunte couture,' the 40-year-old captioned the photo, that saw her nestling in close to boyfriend Jacob Busch.

Ghostly greetings! Rebel Wilson (pictured with boyfriend Jacob Busch), 40, showed off her incredible 20 KILO weight loss in a semi-sheer black dress, as she joined other Aussie stars including Shanina Shaik and Ruby Rose in celebrating Halloween this weekend on Instagram

Ghostly greetings! Rebel Wilson (pictured with boyfriend Jacob Busch), 40, showed off her incredible 20 KILO weight loss in a semi-sheer black dress, as she joined other Aussie stars including Shanina Shaik and Ruby Rose in celebrating Halloween this weekend on Instagram

Jacob showed off similar Halloween-style face paint to Rebel, and donned a crisp white shirt, black trousers, suspenders and a bow tie left undone. 

Over in London, Victoria's Secret model Shanina Shaik ensured all eyes were on her when she dressed up as a 'bad bunny'.

The 29-year-old slipped her curves into a stunning bondage-inspired outfit before hitting the city's streets. 

Racy: Over in London, Victoria's Secret model Shanina Shaik, 29, ensured all eyes were on her when she dressed up as a 'bad bunny'

Racy: Over in London, Victoria's Secret model Shanina Shaik, 29, ensured all eyes were on her when she dressed up as a 'bad bunny' 

Cute and comfy: Ruby Rose, 34, kept it casual, opting to dress up as a pumpkin in an orange onesie. Hilariously, she dressed the same as her friend's child

Cute and comfy: Ruby Rose, 34, kept it casual, opting to dress up as a pumpkin in an orange onesie. Hilariously, she dressed the same as her friend's child 

'LOLA the Bad Bunny,' Shanina captioned a series of racy photos.  

Ruby Rose kept it casual, opting to dress up as a pumpkin in an orange onesie.

The 34-year-old actress teamed the look with neon orange sneakers, and offered a glimpse of her green buzz cut underneath the hood of her onesie. 

'Whore wore it better. Happy Halloween everyone,' Ruby captioned the photo that saw her sitting next to a friend's child, who also wore a pumpkin onesie. 

Iconic couple: Tammy Hembrow, 26, and beau Matt Poole dressed up as another iconic couple - Danny and Sandy from the movie Grease, originally played by John Travolta and Olivia Newton John

Iconic couple: Tammy Hembrow, 26, and beau Matt Poole dressed up as another iconic couple - Danny and Sandy from the movie Grease, originally played by John Travolta and Olivia Newton John 

Family fun: The fitness mogul also dressed up as Minnie Mouse this weekend, with her adorable children, Wolf, five, and Saskia, four

Family fun: The fitness mogul also dressed up as Minnie Mouse this weekend, with her adorable children, Wolf, five, and Saskia, four  

Going all out: Former Home and Away star Kate Ritchie, 42, splatted red paint on her white T-shirt to resemble blood, showed off fangs, and covered her face in white and black paint

Going all out: Former Home and Away star Kate Ritchie, 42, splatted red paint on her white T-shirt to resemble blood, showed off fangs, and covered her face in white and black paint 

Tammy Hembrow and beau Matt Poole dressed up as another iconic couple - Danny and Sandy from the movie Grease, originally played by John Travolta and Olivia Newton John.  

Ironman Matt was a dead ringer for Danny Zuko in a

read more from dailymail.....

PREV Malin Anderson celebrates her c-section scar in a racy Halloween outfit
NEXT TALK OF THE TOWN: It's Granny Hall! Supermodel Jerry, 64, greets her first ...