So Ji Sub will be the first star to be featured on Mnet's special project series 'Collabo One'.

'Collabo One' will invite celebrities who are not singers by trade to collaborate with musicians and other music professionals. The actor will release a rap album later on this month and the process of getting ready for the album will be revealed through the show.

The 'Collabo One' segment with So Ji Sub will be featured through 'Music Triangle' on Mnet and KM over the next three weeks. According to staff, So Ji Sub participated throughout the production process for the collaboration project, even writing his own lyrics.

However, he will not be promoting his upcoming album on any music programs, so watch 'Collabo One' on Wednesdays at 6PM KST.

Check out a preview for the January 10th episode below!