Singer IU released the teaser video for her new album title song, "The Red Shoes."

IU Performs Title Song with 'The Red Shoes' for the 3rd Album 'Modern Times' Show Case - Oct 7, 2013 [PHOTOS] 

On October 4, LOEN Entertainment released on her official YouTube channel, the teaser video for her title song. Singer and producer Yoo Hee Yeol made a surprise appearance in her video and gained much attention as well.

In the teaser, Yoo Hee Yeol is seen playing the piano with IU sitting next to him. This is the second time a producer has made an appearance in her music video. The first time was Jung Jae Hyung in her "Good Day" video.

On the other hand, she will be releasing her new album on October 7.