The Hex Girls Song Collection 01 Hex Girl YouTube MusicScoobster Thelma, but when the dark ladies appear to the scene, Scoob and his friends can't resist getting wrapped up in their mystical adventures. From solving ghostly mysteries to performing together, Scoob and the gang form an staunch attachment with the hex girls. Let's join them on their hair-raising escapades and never-ending fun-filled quests!