In May 2008, he became an ambassador for the Pork Management Committee (양돈 자조금 관리위원회 홍보대사) Lee has appeared on many reality-variety shows.

Up until 2012, he was signed under Castle J Entertainment, and on September 19, it was announced that he had signed exclusive contracts with SM C&C, a subsidiary of SM Entertainment, along with Kim Byung-man, immediately after fellow national MC Kang Ho-dong and Shin Dong-yup joined.

In the first public trial on the morning of December 6, 2013, Judge Shin Myung-hee of the Seoul Central Prosecutor's Office charged Lee Soo Geun with eight months in prison and two years of probation.

Lee Soo Geun, who appeared in the first public trial with his lawyer, repeatedly acknowledged his crime and begged for mercy.

[12] After two years of self-restraint time at home, he returned with billiards competition show "Juk-bang Legend".