HaHa ft 10cm - Wanna die or date me
HaHa ft. 10cm - Sweet rice cake
10cm × haha - Do You Want To Die Or Go Out With Me?
스컬&하하 SKULL&HAHA - Beautiful Girl (feat. 권정열 of 10cm)
HAHA & 10cm (센치한 하하) - 죽을래 사귈래
HaHa & 10cm - Wanna Die OR Date Me~~~
Skull (스컬) & Haha (하하) ft. Kwon Jung Yeol (권정열) [10cm] - Beautiful Girl