Question: Rock Mafia has worked with an American singer, songwriter, and actress who made her debut as a child actress in what show?
Sentence (from "Demi Lovato"): The following year, Lovato was cast as the titular character of the television series "Sonny with a Chance" and she released her sophomore album, "Here We Go Again", which became her first one to top the "Billboard" 200 chart.
Relevant evidence: No