There is more than one artist with the name Astro. 1. ASTRO (아스트로) is a South Korean boy band formed by Fantagio in 2015. The group is composed of six members: MJ, Jin Jin, Cha Eun-woo, Moon Bin, Rocky, and Yoon San-ha. Their debut mini-album Spring Up released on February 23, 2016. 2. Astro is a chilean indie-eclectric-electronic band, first formed in 2008. Astro released its first EP Le Disc de Astrou in 2009, the quartet released its first full-length album, Astro in 2011.