The song was written by Sheeran and Amy Wadge and was produced by frequent collaborator Jake Gosling.
The song was released in the US on 24 September 2014, serving as the third single from the album.
In the UK, the song spent 19 weeks within the top 40 before it peaked at number-one in early November 2014; it became Sheeran's second number-one single there.
The single has also reached the top spot in Australia, Ireland, New Zealand, Denmark, the Netherlands, Slovakia and South Africa.
The song peaked at number two on both the US Billboard Hot 100 and the Canadian Hot 100, was the Sheeran's highest charting single in North America until "Shape of You" topped the charts in both countries in 2017.