The document discusses how songs can be used to learn English. It notes that songs contain language features like imagery, rhythm, and figures of speech that make them engaging learning tools. The structure of songs typically involves a verse to tell a story and a refrain or chorus that is repeated. Songs also use rhyme and figurative language like similes, metaphors, personification, and alliteration. Learning the meaning behind these language techniques helps improve English comprehension. The document concludes by providing the lyrics of the song "Happy" as an example to identify its refrain, verses, metaphors, and similes.