Soyul, a member of K-pop group Crayon Pop, has unveiled her first single “Y-Shirt” on Monday.“Y-Shirt” is about a girl’s crush on men in dress shirts, while reflecting the group’s signature bright tones. In the music video, Soyul plays the role of a designer for men’s dress shirts. With the help of four fairies, played by the four other members of Crayon Pop, Soyul successfully designs a new shirt and climbs to stardom.“Y-Shirt” is available for download on iTunes.By Lim Jeong-yeo ()