Sherlock is the fourth EP of South Korean boy group Shinee. The physical CD was released on March 21, 2012 in South Korea, but the album was made available online worldwide on March 19, 2012. According to statistics released by Gaon, Shinee’s fourth mini-album Sherlock sold 135,370 copies in the month of March, setting the record for most album sales in March 2012. The title song "Sherlock (Clue + Note)" topped the weekly download chart for 5 weeks and digital chart, various music charts as well. On March 27, 2012, Sherlock placed 10th on the Billboard Weekly Heatseekers Albums and 5th on the Billboard Weekly World Albums charts respectively.