Demetria Devonne "Demi" Lovato is an American singer, songwriter, and actress. After appearing on the children's television series Barney & Friends (2002–2004), she starred in the Disney Channel short series As the Bell Rings (2007–2008). Lovato rose to prominence for playing Mitchie Torres in the musical television film Camp Rock (2008) and its sequel Camp Rock 2: The Final Jam (2010). The former film's soundtrack contained "This Is Me", her debut single and duet with Joe Jonas, which peaked at number nine on the US Billboard Hot 100.