Now You Sia, Now You Don't!


 * "Maybe on the way I'll find the dog I saw the other night" — Loreena McKennitt

"Now You Sia, Now You Don't!" is a 2019 episode from the animated TV series Scooby-Doo and Guess Who? that revolves around Sia. All episodes in the series have the Mystery Inc. team join forces with real-life celebrities, other fictional characters, or historical figures. This episode presents a mystery set in and around famous singer Sia's mansion.

Plot
Sia finds herself in danger of falling under suspicion due to her ghostly doppelgänger's diamond robberies. She calls up her friend Daphne Blake, a member of amateur detective team Mystery Inc., to help turn the situation around. The teenage mystery-solvers and their dog Scooby-Doo arrive at Sia's mansion, meeting the quirky singer and her associates, all of them potential suspects. Who is really under the sinister Sia lookalike's wig?

Voice cast

 * Frank Welker as Scooby-Doo, Fred Jones, Jewelry store owner
 * Matthew Lillard as Shaggy Rogers
 * Grey Griffin as Daphne Blake, Sia's housekeeper
 * Kate Micucci as Velma Dinkley
 * Sia as herself
 * Kari Wahlgren as Business woman, Sia's manager, Sia's trainer

Trivia

 * Sia's hairstyle in the episode most resembles the wig she wears in the "Wolves" music video.
 * The original animated Sia design was different, but it was ultimately decided to go with a more eccentric look. However, streaming services offering the episode use that prototype version as the associated image.
 * Sia's Palm Springs mansion in the cartoon recalls the Palm Springs Mediterranian house Sia briefly owned in 2014.
 * Items seen in Sia's house include: a chandelier, diamonds, her various wigs and bows from different presentations, and the paper bag she once wore on her head.
 * In the Latin American dub, Sia is voiced by the same actress as Songbird Serenade in My Little Pony: The Movie (Andrea Orozco).
 * The Scooby-Doo and Guess Who? episode "Dance Matron of Mayhem!", released in 2020, guest stars Maddie Ziegler.