Rollin' (B1A4 EP)
Rollin is the seventh extended play by South Korean boy group B1A4. It was released on September 25, 2017 by WM Entertainment and distributed by LOEN Entertainment. The EP consisted of six tracks with the title track "Rollin'". Background and release. On September 18, 2017, WM Entertainment announced the upcoming release of B1A4's mini-album "Rollin" on September 27, alongside a teaser schedule and three jacket images shot in Australia. The tracklisting was revealed on September 19, 2017.