The 'My Black Mini Dress' OST track, sang by Yoon Eun Hye, Park Han Byul, Cha Yea Ryun, and Yoo In Na, has been released! 'My Black Mini Dress,' which will be released in theaters on March 24th is based on the novel by Kim Min-Seo. It tells an honest and spunky story about women in their 20's as they wander between dream and reality after graduating from university. Today's released track involves Park Seon Joo, who composed 'Man and woman,' 'Darn love,' and 'Different,' and vocally trained the top 10 candidates on 'Super Star K2.' The song itself paints the emotions of women in their 20s on a spring day with lively tempo and delicate lyrics. Former Idol Yoon Eun Hye and Yoo In Na, who sang with 'Humming Urban Stereo' earlier this year, along with Park Han Byul, who released digital singles, sang the song perfectly with their stable vocal skills. It's been also said that Cha Yea Ryun, who has never sang in public before, surprised many people with her unexpected vocal talent. You can support by purchasing the album. Source: Newsen