The original group eventually rounded out with Katie, Jenny, Sarah, drummer Shelby Stocks, and guitarist Debora Cohen. In summer 2002, The Organ made their debut with the release of the "Sinking Hearts" EP. The Canadian press and indie publications across America praised The Organ's dreampop-inflected presentation. By January, The Organ was signed to Chad Kroeger's 604 imprint and Mint Records. However, before the year was out, Efron would leave to focus on her journalism career and be replaced by Ashley Webber.