The track has two different songs, like many others on the Viva la Vida album, such as "Lovers in Japan/Reign of Love". "Prospekt's March" is the main song and "Poppyfields" is a short, ambient instrumental piece. The songs are often considered to be a single-song medley as one unit. The band once explained that one of the reasons to put two songs in the same track was to add a bit of value, so it would have "enough value for money"
The name "Poppyfields" was first revealed in September 2007 when Coldplay published a note signed as "Prospekt". The name "Prospekt's March" appeared for the first time in December of the same year, signed by the same pseudonym.