Addressing drug use in school

It is bound to happen eventually...a student brings up drugs in the classroom. I am currently teaching argumentative speeches in my 9th grade classes, and we started the unit by discussing their culminating assignment, a 2-3 argumentative speech. After going over the specifications of the assignment we went over a list of possible ideas for speeches. Not ten minutes in a student raised her hand and asked if she could bring up the topic of drug use in high school. She brought up the fact that there is a drug problem in the school, and that she believed the problem is fueled by the fact that the school is a creative and performing arts school. I decided to let this topic ride, and I opened it up to the class. Some students brought up the fact that drugs can help the creative process and some agreed that drugs will only deteriorate your brain. As always, I turned to my music. I played a song by an up-and-coming artist by the name of Macklemore. His song Otherside depicts how substance abuse, although glorified by some artists, "will leave you broke, depressed, and emotionally vacant." I played this song for my class, and the faces of all the students as they listened were priceless. I could tell that they had never even imagined that a hip-hop artist would write lyrics that placed drug use in a negative light. The honesty and intensity of the song resonated with each student, and after the music stopped it was as if every student had their mind completely blown. I easily moved right into the next topic, because not one student wanted to address the "fun" issue that had suddenly become serious. As always, comments, criticisms, concerns, and questions are welcome.