Complex sentence: "Perfect Symmetry" is a song performed and composed by English rock band Keane, released on 29 December 2008 as the third single and is the title track from their third album of the same name.
Split into simpler sentences: Perfect Symmetry is a song by English rock band Keane. It was released on 29 December 2008 as the third single and is the title track from their third album of the same name.