SECRET has finally returned to their fans through the release of their teaser video for "Shy Boy." Their comeback track has a 'swing dance' concept with outfits, hairstyles, and a set that draws inspiration from 1960's American culture. Additionally, gagman Son Heon Su makes a surprise appearance in the teaser as the role of a player. SECRET's agency, TS Entertainment, commented, "SECRET will be officially preparing for their comeback with this teaser video.  They've received a lot of love this past year with 'Madonna,' and we've prepared just as much to further attract more attention, so please look forward to them." Their swing dance single will be released both online and offline on January 6th. Source + Photos: Star News via Daum Tip: secrettimeFAN