Zico is gearing up for his upcoming mini album 'Gallery'.It was said that there will be 3 music videos, in which the two of them already filmed in the U.S. According to his agency, Zico has been embarking on a tight schedule as he only has 1 hour of rest per day, yet he's still doing his best without any complaint in order to produce the best quality for his album.Meanwhile, 'Gallery' will be released on December 7th.