One More Girl is a Canadian country music duo composed of McKillip actress-singers Carly McKillip and Britt McKillip, who are sisters. The duo signed to EMI Canada in 2008 and released their debut album, Big Sky, in 2009. In 2010, they won the Rising Star award at the Canadian Country Music Association Awards. In August 2011, the duo signed with American pop music label Interscope Records.