Jung Joon Young, who previously excited fans with the news of his comeback, is giving us a taste of what to come with a MV teaser for 'Teenager'!

The concept of 'Teenager' is about an 'adult who dreams', and he perfectly embodies this as he portrays an office worker who has the free spirit of a teenager. He even convinces his boss to lighten up and live a little as they rock out to music in the hallway.

SEE ALSO: Dive into the heart of Korean culture with study abroad in Seoul with these 2 Summer Camp programs