Home Single Chin Chin Project & Park Ji Heon – Day By Day Single [Single] Chin Chin Project & Park Ji Heon – Day By Day September 11, 2010 0 FacebookTwitterPinterestEmailTumblr Chin Chin Project & Park Ji Heon – Day By Day Release date: 2010.09.10 Genre:Dance Pop Bit rate: 320kbps 01. Day By Day MF|MU