Rookie

Rookie is the fourth Korean extended play by South Korean girl group Red Velvet. It was released on February 1, 2017, by SM Entertainment. The album contains six tracks, including its lead single of the same name. The mini-album was a commercial success, topping the Gaon Album Chart and Billboard's World Albums. Background and release On January 20, 2017, an SM Entertainment representative revealed that Red Velvet is planning on making a comeback in February. Four days later, the first batch of teasers were released through SM Entertainment's official website and their official Instagram account, with the release date shown on one of the photos. The members briefly discussed their upcoming album which is revealed to be an extended play on the Naver app V Live.