Harvey’s album drew inspiration from a range of poets, musicians and films, while also exploring conflicts such as wars in the Middle East.

The song title 212 refers to an area code in New York, in this case Manhattan, where Azealia Banks was raised.

Bon Iver's Holocene was written by Justin Vernon and he has described it as both a bar in Portland and reference to a geological era.

Super Bass is Nicki Minaj’s rapped homage to guys who are, in her eyes, the real deal.

Gorillaz' Stylo is a multi-instrumental piece as well as boasting different vocals including a hip hop segment.

Harry Patch (In Memory Of) is dedicated to the memory of Patch and is far removed from a typical Radiohead track.

Dog Days Are Over initially came from a giant text display by Ugo Rondinone that Welch used to pass every day at Waterloo Bridge.

Empire State of Mind was first written by Angela Hunte and Jane Sewell-Ulepic and concerned their feeling of homesickness.

Animal Collective's Summertime Clothes is all about love, lust and heat in the sweltering summer months.

One Day Like This began with Elbow's lead singer who had a lyric penned years before and sitting in a diary, brought to life in this song.

Sex on Fire was not the original intended title for the Kings of Leon song but came about when the phrase “Set us on fire” was misheard.

The track Time to Pretend originally appeared as an EP back in 2005 but was re-recorded for MGMT's debut album.

Fleet Foxes' Mykonos takes its name from one of the Greek islands but the song itself is said to be about drummer, Josh Tillman.

Coldplay's Viva la Vida is told from the perspective of a king who has enjoyed unparalleled power in the past but now that is all over.

Sabali translates as “patience” and in the track the lyrics seem to tell the story of Amadou & Mariam themselves.

With Someone Great, the title of LCD Soundsystem's song, you might think we are dealing with a love song and in some respects we are.

Paper Planes was inspired by M.I.A.’s experiences of immigration monitors in the US and how difficult it was to be allowed into the country.

This collaboration between Robert Plant and Alison Krauss was an award winning and critically acclaimed one

Muse's Supermassive Black Hole - written by Matt Bellamy - concerns a narrator who has fallen for someone he probably shouldn’t have.