Tanggal 30 November, SM ngumumake manawa NCT bakal nerbitake single anyar kanthi judhul "Resonance" sing dadi pungkasan album lengkap nomer loro. Single kasebut nggabungake "Make a Wish (Birthday Song)," "90's Love," "Work It," lan "Raise the Roof" saka album lengkap nomer loro dadi siji lagu. Single kasebut nampilake kabeh 23 anggota proyek NCT 2020. Lagu kasebut dirilis tanggal 4 Desember.