As if to thank fãs for her win at the '2014 MAMA', iu posted 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 fãs of the singer may recognize it to be the full version of the anterior snippet she let fãs hear on a fã community page.
IU, of course, wrote and composed the song herself, so make sure to give it a listen above!
(link)