Principle of My Soul – 나얼 (Naul) – Global Sound / Top Music / By sound2012 Global Sound Principle of My Soul 나얼 (Naul) Genre: R&B/Soul Price: $ 9.90 Release Date: September 20, 2012 © ℗ 2012 인넥스트트렌드 (InNextTrend), under license to LOEN Entertainment Inc.iTunes Store: Top Albums