APRIL 6th Mini Album 'the Ruby'

The Ruby is the sixth extended play by South Korean girl group April. It was released on October 16, 2018, by DSP Media. The EP was supported by the "retro" lead single "Oh! My Mistake". The Ruby debuted and peaked at number 10 on the Gaon Album Chart. From Wikipedia (https://en.wikipedia.org/wiki/The_Ruby) under Creative Commons Attribution CC-BY-SA 3.0 (https://creativecommons.org/licenses/...)