CNBLUE will promote their new album with a guerilla concert on March 21st. The concert will mark the start of their official promotions for their first full-length album, "FIRST STEP." Their management agency,�FNC Music, stated, "We're currently finding a good location for the street-side guerilla concert. We want a lot of people to be able to show up without causing any concern for danger so that both CNBLUE and the fans can enjoy it fully." They added, "The members are preparing hard, as it will be the first time they reveal their new single." Source + Photo: Nate