On December 5, NCT 127 released the dance performance version of their song "Good Thing,” and on December 20, they released the music video for "Switch,” featuring members of the SM trainee group, SR15B.
Pada 5 Desember, NCT 127 merilis versi penampilan dari "Good Thing,” dan pada 20 Desember, mereka merilis video musik "Switch,” yang menampilkan anggota dari grup pelatihan SM, SR15B.