Joshua Leeds Eustis is an American musician, singer-songwriter and record producer, best known as the current sole member of electronic music act, Telefon Tel Aviv, since the death of bandmate Charles Cooper in 2009. He served as a touring member for industrial rock act Nine Inch Nails in 2013 and has collaborated heavily over the years with Maynard James Keenan's solo project Puscifer, for which he also served as a touring member. Eustis' solo project is Sons of Magdalene, of which he began releasing music under in 2008. He is also a founding member of the band The Black Queen.