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Background and release
The extended play includes 5 tracks written, co-written and co-produced by Seventeen's group members. "Adore U" was chosen as the lead single for the EP and was performed on multiple music shows by the group. "Shining Diamond" was used a pre-single on the group's reality debut show. The group states that the track list was chosen to reflect the group's core concept of "boys passion".The album has two physical versions: one with a "black" themed photo card set and the other with a "white" themed photo card set. All copies include a CD containing the songs and a fold up poster/lyric sheet.
|1.||Shining Diamond||SEVENTEEN||Woozi, Vernon, S.Coups, Kim Min-jeong||Woozi, MasterKey, Rishi||MasterKey, Rishi|||
|2.||Adore U||SEVENTEEN||Woozi, Vernon, S.Coups, Bumzu||Woozi, Bumzu, Yeon Dong-geon||Woozi, Bumzu, Yeon Dong-geon|||
|3.||Ah Yeah||Hip-Hop Team||S.Coups, Vernon, Wonwoo, Mingyu||Rishi||Rishi|||
|4.||Jam Jam||Performance Team & Vernon||Woozi, Hoshi, Dino, Vernon||Woozi, Cream Doughnut||Cream Doughnut|||
|5.||20||Vocal Team||Woozi||Woozi, Won Yeong-heon, Dong Ne-hyeong||Won Yeong-heon, Dong Ne-hyeong|||
- choreography= Choi Youngjoon and Hoshi (Hoshi solely did the choreography for Jam Jam)
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