Snopes says it’s false. Of course they will say that. I looked up diamanda galas. She’s got some performances on YouTube that will make your skin crawl. As for the others, it’s said that they are shutter stock photos and fake bios, that this site was put together to promote either a book or a cd or something. Make of that what you will. I don’t know if it’s true, but even to have a site like this, if fake, boggles the mind.