Talented vocal group V.O.S are having a lot of fun with Twitter lately. On the 17th, they released the first part of their mini-album titled "THE BLUE BIRD", and are currently busy with promotional activities for their main title song "Full Story." Despite their busy schedules, however, V.O.S still found time to communicate with their fans as they posted various pictures showing the group's day-to-day schedule. V.O.S usually showcase a powerful presence because of their vocals, yet a completely different angle was revealed through the photos as the members looked tired or were already sleeping. V.O.S fans are also able to see the members eating, getting interviewed, and chilling with child actress Joo Hae Rin. It's an interesting opportunity to see the boys behind the scenes, as sometimes it's hard to forget that they are, after all, normal guys (albeit with exceptional talent) at the end of the day. Meanwhile, V.O.S's new song is receiving increasing popularity as it attains top rankings on various online music charts.