Lee Young Ji and Christopher's collaboration sparks anticipation following his cover of 'Small Girl'

Kim Chung Ha & Christopher drop 'When I Get Old' MV

Kim Chung Ha & Christopher tease next collaboration 'When I Get Old'

Kim Chung Ha & Christopher perform 'Bad Boy' + Xdinary Heroes perform 'Love Me Right' on JTBC's 'K-909'

NCT 127, Crush, Kim Chung Ha, Christopher & NMIXX to guest on the first episode of JTBC's K-Pop music program 'K-909'

ATEEZ's Wooyoung drops dance performance to Christopher's 'Bad' as STUDIO CHOOM's Artist of the Month

TWICE's Momo puts on stunning dance performance set to Masego & FKJ's 'Tadow' and Christopher's 'Bad'

Kim Chung Ha is on the hunt for a 'Bad Boy' in new collaboration MV with Danish singer Christopher

Kim Chung Ha x Danish singer Christopher wait to connect in 'Bad Boy' MV teaser

Kim Chung Ha x Danish singer Christopher drop 'Bad Boy' live video

Kim Chung Ha x Danish singer Christopher reveal 'Bad Boy' teaser image in leather

Kim Chung Ha is pairing up with Danish singer Christopher to release a new single on September 23