Many commuters may have been surprised by the posters on the metro as fans posted many posters to honor Jang Keun Suk's 20th anniversary in the entertainment industry.

Over 258 posters of all different sizes were posted on a train in all 8 sections.

His fan club, 'Cri J' worked hard to post these all over the place. The posters have a poem that was read by Jang Keun Suk during his concert in Japan.

These posters will be posted until October 10. They also say that they chose to do this now since his birthday was around this time.

Many calls were made to the Seoul metro asking when the poster-filled train would begin its route.

His fan club also announced that they will also be holding a volunteer event to honor his anniversary as well.