As if to thank mashabiki for her win at the '2014 MAMA', IU ilitumwa on her Twitter, "I'm happy. It's all thanks to you. This is a present." She then provided the link to the audio heard above, which avid mashabiki of the singer may recognize it to be the full version of the awali snippet she let mashabiki hear on a shabiki community page.
IU, of course, wrote and composed the song herself, so make sure to give it a listen above!
(link)