Career
In November 2011, Ko released his debut studio album Be Yourself. On August 18, 2014, it was reported that Ko had been arrested on August 14 by the Beijing Police for drug use, along with Jaycee Chan, a Hong Kong actor. Reports from urinalysis has shown positive results for marijuana.
Ko had appeared in a 2012 anti-drug advertisement in Taiwan where he and other celebrities declared "I don't use drugs". He's set to be released on August 28 and will face another round of interrogations by the Taipei District Prosecutors Office after returning to Taiwan.