The boys of TEEN TOP have unveiled a teaser photo from their mini-album jacket for their upcoming second mini album. The teaser photo was posted on TEEN TOP's official website. Not only are fans ecstatic for their comeback, they should be more than delighted to see that the members are going with a darker, 'bad boy' concept this time around. Stay tuned to allkpop for their video teaser which drops December 29th! Additionally, their second mini album will be released on January 5, 2012 Source & Image: TEEN TOP official website