Judy Murray is set to channel cartoon villain Cruella De Vil for Strictly Come Dancing's Halloween special.

The tennis coach will delve into her dark side as she performs the American Smooth with her dance partner Anton du Beke on the themed edition of the BBC show this weekend.

Their song, from Disney film 101 Dalmatians, features the villainous Cruella, who kidnaps puppies for their fur.

BBC DJ Scott Mills, the bookmakers' favourite to leave, will be transformed into Uncle Fester for his performance of the Foxtrot to the Addams Family theme with partner Joanne Clifton. TV presenter Alison Hammond and Aljaz Skorjanec will dance the American Smooth to Kate Bush's Wuthering Heights, and promised on Strictly spin-off show It Takes Two they will be Cathy and Heathcliff "with a twist".

EastEnders star Jake Wood, the bookies' favourite to win the show, and his partner Janette Manrara will perform the Paso Doble to Ram Jam's Black Betty, and Saturdays singer Frankie Bridge and Kevin Clifton could go green for their Tango to Defying Gravity from the stage musical Wicked.

Blue singer Simon Webbe - who was saved by the judges last week - will dance the Paso Doble to Alice Cooper's hit Poison with Kristina Rihanoff, while Pixie Lott and Trent Whiddon are expected to give an electrifying Tango performance to Danger! High Voltage by Electric Six.

Caroline Flack and Pasha Kovalev will perform a disco-inspired Samba to Chic's Le Freak, and f ormer The Only Way Is Essex star Mark Wright and Karen Hauer will perform the Jive to Little Shop Of Horrors.

Naturalist Steve Backshall and Ola Jordan will do the Charleston to Kay Starr's Dem Bones Dem Bones, and Sunetra Sarker and Brendan Cole will take on the Jive to Gloria Jones' Tainted Love.

Meanwhile, Judy joked that her son Jamie has become her coach since she has been taking part in Strictly.

"He's been telling me what I should be drinking, eating... [and that] I should be watching clips on YouTube to get myself better. He's kind of turned into my coach and it's really quite funny!" she told Good Morning Britain hosts Ben Shephard and Charlotte Hawkins.

The 55-year-old coach also hopes her other son Andy, who is playing in Paris this weekend, will cheer her on in the audience.

"There's a part of me that hopes that he'll still be in Paris but there's another part of me that would love him to be there [watching me dance]. That's payback right there... now you know what it feels like, son!"