Kate Hudson and her mum Goldie Hawn rallied together to create a set of very eye-catching Halloween costumes for the actress' annual bash.
Taking inspiration from TV series Sons of Anarchy, which follows a close-knit outlaw motorcycle club, Kate and Goldie donned figure-hugging, biker leather outfits for the Los Angeles celebration.
Kate, 35, got her fans' seal of approval when she posted an Instagram photo of herself and her mum surrounded by their fellow party-goers.
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Kate Hudson and her mum Goldie took centre stage in their Sons of Anarchy costumes
"Mother of Anarchy is taking her daughters to a little party.... #HappyHalloween @hudsonjeans_pk #hudsons #partytime," wrote Kate alongside the bold snap, gaining over 10,000 likes in the process.
The Wish I Was Here star was pictured smouldering at the camera alongside her famous 68-year-old mum, who defied her years in tight black leather trousers and a personalised "Mother of Anarchy" tank top.
Kate Hudson showed off her washboard abs in her Instagram snap
Kate again shared another close-up on Instagram of her killer outfit, which was made up of leather hot pants, a matching gold-studded bandeau, biker gloves and a leather hat.
"The Hudson's unite ❤! Thank u @hudsonjeans_pk @hudsonjeans for making these killer costumes a reality," she captioned the snap, showing off her washboard abs.
Other celebrities that were invited to Kate's bash included Jessica Alba and her friend Kelly Sawyer, who teamed up to go as Axl Rose and Slash from hard rock band Guns N' Roses.
Kelly Sawyer and Jessica Alba went as rockers Axl Rose and Slash
Jessica looked almost unrecognisable dressed as Slash, donning a voluminous curly wig and the lead guitarist's trademark top hat to hide her pretty face. The Sin City star completed her costume with a baggy grey T-shirt, black leather trousers, a denim waistcoat and biker boots.
Katy Perry also attended Kate's annual Halloween party, donning an amusing Cheetos costume, while Courteney Cox and her fiancé Johnny McDaid turned up together as a vampire bride and Count Dracula.