The Chorus is the most
critical component of any popular song. Melodically it should
be simple and immediately "Hummable," and Lyrically
it should hammer home the central theme of your song. The
Chorus is definitely not the place to introduce any new details
or other new information. That's the Verse. The Chorus should
also sound like it "Belongs" at the end of each
Verse and at the end of the Bridge. The Chorus will always
have the same melody and usually have the same lyrics.
