...and he wants everyone to know it! He wore a NO DRUG t-shirt while mixing it up for ChaeYeon's comeback stage. Ex-Clone Koo Jun Yup aka DJ Koo held a press conference at 2PM at the South Korea Entertainment Producers Association regarding the malicious rumors about drugs surrounding him. How Lee Minho of him... Police have been investigating DJ Koo and his club activities for related drug involvement after the Joo Ji Hoon drug scandal was exposed recently. The emotional stress of the accusations led him to openly set the record straight. He expressed that he was very uncomfortable as being suspected of drug trafficking only for working hard and being professional. He also talked about how he's been investigated three times in 7 years for drugs. DJ Koo is well known to be a club scene aficionado, bringing in hot trends from Europe such as techtonik dancing. He also produces and mixes other pop artists like Hwangbo and the upcoming ChaeYeon album. Although Koo Jun Yup was clearly hurt and upset, it was still an honorable move to come forward and address the rumors. The press conference disclosed the unfair treatment he was receiving from authorities for someone else's actions. DJ Koo has been collecting materials for a book he is writing on the positive effects of clubbing. Yes, because clubbing should be a positive fun event and not one that involves taking pills that were smuggled into the country in the panties of a D-list actress.