Cimorelli is a singing group popularized on YouTube and signed to Universal Music's Island label. Cimorelli is made up of five sisters, Christina, Katherine, Lisa Cimorelli, Amy, and Lauren. Their singing style is mostly using a capella with occasional instruments. They started posting covers of songs on YouTube, before releasing original songs. As of June 2014, the group has released five EPs. In 2007, the oldest five girls of the family launched Cimorelli as a vocal group.