Most of us have had the experience of nodding along to a song and mouthing the words (or some semblance of them) without actually listening to what we're saying. Often the tracks with the most upbeat, feel-good sound mask a deeper, darker, deeper meaning. Whether it's illicit substances, bitter breakups, or straight-up homicide, the meanings and lyrics of these songs give off vibes very different from the music.
While some of these tunes struck a bigger chord than others, they definitely went over our heads the first time (or first hundred times) we heard them. From classic lullabies to disco fever to 1990s pop, vote up the songs that hit differently once you know what they mean.