Double-A (Korean: λλΈμμ΄; pronounced "Double-A"), stylized as "AA", was a South Korean boy band formed by Wellmade Yedang formerly known as Well Made STAR M in 2011. The group consists of two members: Woosang and Hoik. Since 2015, Blue Star was acquired by Wellmade Yedang, the group while managed by Blue Star.