This song is a duple meter with a moderate tempo. The main instrument is a guitar with syncopation by drums which gives it a reggae feel. The speed of the beats remain constant throughout the song.
The music is clear, and lively. The guitar and drums are very clear. There are other percussion instruments like the cymbal which accentuates the downbeat with the drums. The music is in the major scale, which makes it feel bright and lively. The vocal is the main melody, performed by Bruno Mars who has a higher pitched voice than the Damion Marley who has a lower pitch. While the music has a major scale, which normally helps to create the feeling of joy. The words of the song speaks of drug use normally a very dark subject.
The music is harmonious with Bruno Mars and Damion Marley voice. As with traditional reggae music there the harmony is very simple using only two chords throughout the song.The music is generally laying in mp, but during the climax points the dynamic changes to f. Since there is just one melody with several accompaniments, then the texture of the music is homophonic. The song is in a binary form repeating each section.