On July 20th, After School's new sub-unit, 'A.S. Blue', finally unveiled their debut music video for "Wonder Boy". As the unit is in charge of the 'innocent' concept, fans were surprised to see the girls donning garter stockings, which is usually associated with a sexier image. In the music video, the ladies were seen wearing a 'pajama lingerie look' involving a blouse, hot pants, and garter stockings. Netizens thought that the look was a bit suggestive for a unit that's going for the innocent concept and raised a bit of controversy over the issue. Pledis spoke up on the issue by explaining, "It's not a garter belt but a 'leggy look' knee-socks fashion. In order to improve the style, we added a white connecting string from the pants to the stockings." Source + Photos: Star N News via Naver