Question: Who is the spouse of the performer of song Sparks (Hilary Duff Song)?
Sentence (from "Hilary Duff"): In addition to music and acting, Duff has also co-authored a trilogy of novels, beginning with "Elixir" (2010), which became a "New York Times" best seller, and followed by the sequels "Devoted" (2011) and "True" (2013).
Relevant evidence: No