Scooby Doo! And Guess Who? - Season 1

When Daphne gets a call from her good friend singer-songwriter SIA, the gang finds themselves in a mystery involving an evil demon ghost that has taken the shape of Sia as a ghostly doppelg??nger. And this ghost is getting Sia in hot water by stealing countless gems and jewelry. Can our gang prove her innocence? Can they catch the true thief? Or will the ghostly doppelg??nger catch them instead?!