Big Mama's leader, Shin Yuna, and maknae Park Min Hye, will be debuting as a sub-unit duo under the name of 'Big Mama Soul' next month. Shin Yuna revealed, "Big Mama Soul is a duo brought together to create music that rings in people's souls. We'll be retaining Big Mama's style but with a stronger emphasis on blues and soul." Their digital single will be comprised of three songs that are self-composed by the two members. One is described to be a refreshing guitar-based track, while the others are a western punk song and a British modern rock ballad. Big Mama Soul will be holding a two-day concert on June 25th and 26th. Source + Photos: Sports World via Naver