Rap, country, and R&B music mentions alcohol at least 15% of the time and up to 38% (in the case of rap and hip-hop). Rock music, for some reason, was not found to mention alcohol in the lyrics this particular study looked at. Different varieties of alcohol were found to be correlated with different types of music.
The study did not look at the effects of listening to music referring to alcohol on people, but co-author David Jernigan, PhD, (Director of the Center on Alcohol Marketing and Youth at Johns Hopkins) did suggest a possible correlation in a news release.
Link: http://www.drugfree.org/join-together/alcohol/almost-one-fourth-of-top-music-hits-mention-alcohol
