Rap songs follow a similar structure as most popular musics, though, like all music, there is a lot of variation. The basic structure of a rap song is verse one, chorus,
verse two, chorus, bridge and chorus. Often an intro and outro can be added to that structure.
Verses usually consist of rapping, not singing. Most rap songs have at least three verses, sometimes many more, sometimes fewer.
The chorus of a song is the part that is repeated at least twice, and often much more. The chorus usually contains the hook, or the part that connects people to the song. The hook is often melodic or contains a phrase that will stick in a listener's head.
Sometimes referred to as "the middle eight," the bridge of the song is different from the verse and the chorus, but usually references one or the other. The bridge of a song provides a different aspect from the chorus and verse, which are repeated, and usually only occurs once.
Most popular music songs have an intro, outro or both. These sections are often instrumental, and introduce the melodic, harmonic and rhythmic themes of a song before the performer begins rapping or singing.
A posse cut is a popular technique in rap in which a song has at least four verses by members of a group or members from different groups. Most if not all of the Wu-Tang Clan's songs could be called posse cuts.