イゲ ムスン イリヤ~なんで?どうして? (Japanese Ver.) (初回限定盤B (초회한정반B)) — release edition, credited artists and sourced label relationships.
Source release date: 2013-08-28.
This page describes one source release edition. Other editions and recordings may have separate identities.
These are sourced release-label relationships, not current artist contracts.