"Green Rain" is a pop-R&B song performed by the South Korean boy group Shinee. The song and its instrumental version were released as a double-sided digital single on June 28, 2013 under the record labels of S.M. Entertainment and KT Music. "Green Rain" was the second soundtrack for the MBC TV drama series The Queen's Classroom to be unveiled, preceded by "The 2nd Drawer" from fellow label-mate Sunny. It was also used as the ending theme-song for the series.