Demetria Devonne Lovato (born August 20, 1992) is an American singer-songwriter, philanthropist, and actress. Lovato was first in Barney & Friends (2002–2004), but became more popular from being in the television movies Camp Rock (2008) and its sequel Camp Rock 2: The Final Jam (2010). One of the songs on the first Camp Rock movie was "This Is Me", which Lovato sang with Joe Jonas. This song was popular and was in the Billboard Hot 100.