Question: What is the middle name of the American singer songwriter who has been pushing the boundaries of lyrical content and visual imagery and who has worked with Tessa Watts, the English music video and film producer at Virgin Records and MTV?
Sentence (from "Tessa Watts"): Tessa Watts (born Stephanie Siddons; 25 October 194513 May 2014) was an English music video and music film producer.
Relevant evidence: Yes