To pot and sing about it

According to new research there is a strong link between listening to music that mention pot in the lyrics and smoking it. After controlling for such demographic variables as age, race, gender, parental education and school grades in analyzing the data, researchers did admit that

it may be that heavy exposure to music about marijuana causes marijuana smoking, it may also be that those who smoke marijuana seek out music with lyrics related to marijuana

Which is what I thought would be the case in the first place, no research required. You can read all about it here.