깨달음, 현대 의학의 힘, 선을 넘자 등의 곡으로 시대와 호흡했던 키겐의 신곡. 슬프다.PRADA SHOES (Feat. ESBEE)작사 : 키겐작곡 : 키겐, ESBEE편곡 : 키겐Produced by 키겐, ESBEEComposed by 키겐, ESBEELyrics by 키겐Arranged by 키겐Piano, Bass & Drums by 키겐Chorus by ESBEERecorded by 키겐, ESBEE at BRANDNEW MUSIC StudioMixed by 키겐 for KOREAN ROULETTEExecutive Produced by 라이머 a.k.a Mr. BIG Daddy for BRANDNEW MUSICProduced by 키겐, ESBEE for KOREAN ROULETTEPromotion & Artist Management Director 남서우Recorded by 키겐, ESBEE at BRANDNEW MUSIC StudioMixed by 키겐 for KOREAN ROULETTEMastered by 마스터키 at MasterPiece SoundLabAdministration Director 김형욱Administration & Accounting 윤성혜, 김세민Production Co-ordinator 마스터키, 원영헌, 동네형, ASSBRASS, 리시, 9999, XEPY, 태완, DJ JuiceArtist Management 정민규, 이호진, 권용완, 김준배, 박승현Strategy Planning 정의봉A&R 유영준, 한태희Marketing & Online Promotion 이미희, 오정아Artist Development & Casting 장유진Fan Marketing 이미희, 오정아, 타카야마 나리사Overseas Business 타카야마 나리사, 이화일Art Direction & Design MJJ Progress (문승재)Style Director 이동연, 김보성Stylist Assistant 안재희, 전소은Hair BLACK LIP (한주영, 조수연, 윤혜정, 배수진)Make Up BLACK LIP (한주영, 조수연, 윤혜정, 배수진)Presented by BRANDNEW MUSIC