Swing Entertainment said Tuesday the group will release its third EP "I.O.I: Loop" on May 19, followed by promotional activities.A promotional schedule released via the agency's official social media accounts showed that a pre-release track is set to be unveiled May 4.The group will also stage a three-day concert at Jamsil indoor stadium in Seoul starting May 29 to mark the comeback.However, promotional activities for the upcoming album will involve only nine of the group's 11 members with two -- Kang Mi-na and Zhou Jieqiong -- sitting out due to individual schedules.Formed through local ca…READ FULL ARTICLE