Goo Hye Sun and visually impaired group�The Blind�worked in collaboration for a song.�

On March 2, YG Entertainment released the song "Written and Erased", which is a collaboration song of Goo Hye Sun and The Blind.�

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The song is about a blind man writing a letter to a girl in an attempt to confess his love. He repeatedly wrote and erased his message multiple times as he tries to write a perfect letter.�The sound of a braille typewriter is featured in the background of the song, which added an extra, unique rhythm.�