'올티도 섹시해지고 싶었다' [CREDIT] TRACK 1. GBPG Produced by gJ for ADV Lyrics by 올티 Composed by 올티, gJ Arranged by gJ Recorded by gJ Recorded at ADV Mixed by theoria. All Instruments by gJ TRACK 2. 나머지 수업 (Lessons In Love) (Feat. Rico) Produced by gJ for ADV Lyrics by 올티 Composed by 올티, gJ Arranged by gJ Recorded by gJ Recorded at ADV Mixed by theoria. Background Vocals by 올티, Rico Additional keys by 달재 All Instruments by gJ Producer 올티, gJ Mastered by theoria. Cover Art 진왕