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What happened with Coldplay in 2013?
On 9 August 2013, Coldplay announced the release of their song Atlas.
What did Coldplay's song Atlas feature in?
Coldplay's song Atlas featured on the soundtrack for the film The Hunger Games: Catching Fire.
Was Coldplay's song Atlas otherwise popular aside from being in The Hunger Games?
Coldplay's song Atlas has charted in 16 countries and reached top ten positions in three of them, and has also received mostly positive reviews from music critics.

Question: What was Ghost Stories?
Self-contained rewrite: What was Coldplay's Ghost Stories?