유재석
In June 2016, Lee and fellow CNBLUE member Jung Yong-hwa were accused of insider trading of FNC stocks based on information that their label, (FNC Entertainment), was signing popular comedian, host, and television personality Yoo Jae-suk. While Jung was acquitted of all charges, Lee was fined. Lee apologized and stated that he bought the stocks without verifying the information, but once he realized legal issues could result from the purchase, he held onto the stocks.