• hello teaser: https://www.youtube.com/watch?v=uq1VYpyAnAM
• hello mv: https://www.youtube.com/watch?v=pz2AX7Sd844
• are you ready teaser: https://www.youtube.com/watch?v=jpgW2CtXXQQ
• are you ready mv: https://www.youtube.com/watch?v=11sEuvwpKuQ

christmas song: https://www.youtube.com/watch?v=a9MJy8KUAlM&feature=youtu.be

• between night n music teaser: https://www.youtube.com/watch?v=-jHK87gN20Q
• between night n music mv: https://www.youtube.com/watch?v=cnlPJM_p0m8