Singer Wonstein releases the lead single "Apocalypse" today.

Prior to the release of Wonstein's EP album 'DEMO', the lead single "Apocalypse" will be released on May 23 at 6PM KST through all online music sites in Korea and abroad.

Standard Friends said, "It will be a welcome look for hip-hop fans who missed rapper Wonstein's music during his debut days," and said, "Apocalypse is a track that can feel the theme of the soon-to-be-released 'DEMO' most intensely."