Alejandro (song) incorporates a type of music genre that first became prominent in the late 1970s.
 Traditional music styles such as jazz and folk music were used by composers as a source of ideas for classical music
 From the 1960s onward, Western pop and rock songs are often in verse-chorus form, which comprises a sequence of verse and chorus ("refrain") sections, with new lyrics for most verses and repeating lyrics for the choruses

