Question: What singer signed a contract with Def Jam Recordings at age 19 and was mentored by LA Reid and Jay-Z?
Sentence (from "Christina Milian"): In 2001, Milian released her self-titled debut album, which featured the singles "AM to PM" and "When You Look at Me"; "AM to PM" charted within the Top 40 of the U.S. "Billboard" Hot 100 and both peaked in the top three on the UK Singles Chart.
Relevant evidence: No