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Lion Heart is the fifth Korean studio album and the eighth overall by South Korean girl group Girls' Generation. It marked their first record as an eight-member group since the departure of member Jessica in September 2014. Produced by Lee Soo-man, "Lion Heart" musically encompasses styles of electropop and bubblegum pop. It was released in two parts throughout August 18 and August 19, 2015 by S.M. Entertainment; another version with a different cover titled "You Think" was distributed on August 26, 2015. This is the group's first Korean studio album without former member Jessica who left the group on September 30, 2014.