The name Oonagh is taken from a legendary Celtic queen of the fairies. The woman behind the persona, Senta-Sofia Delliponti, is from Germany. But she sings in Elvish, the fictitious language invented by "Lord of the Rings" creator J.R.R. Tolkien. Oonagh’s blend of fantasy and pop has been a big hit in Germany, with her debut album riding high in the charts.