Singer/songwriter Sara Bareilles worked relentlessly to become the million-selling artist she is today. She released her own independent debut Careful Confessions in 2004. However, it was her sophomore effort, 2007's Little Voice on Epic Records, that made her a household name. Her catchy and emotive songs could suddenly be heard in commercials and on hit TV shows. Her 2010 effort Kaleidoscope Heart, produced with artists like Pharrell Williams and Ahmir “Questlove” Thompson, and her 2013 album The Blessed Unrest, proved equally successful.