Back to the Basic is the first Korean-language extended play by South Korean R&B and pop singer Rain. It was their first EP two years after the release their Korean-language studio album Rainism.Upon the release the EP was a commercial performance and sold more than 56,000 copies in South Korea and 8,000 in Japan as of 2013. The album peaked at number 1 in on the Gaon Album Chart and number 25 on the Oricon Albums Chart.