"Sing" is a song by English singer-songwriter Ed Sheeran. It was written by Sheeran and Pharrell Williams, who also produced it and provides uncredited background vocals. The song was released on 7 April 2014, serving as the lead single from Sheeran's second studio album, x (2014). The song became Sheeran's first UK number-one single and also topped the charts in Australia, New Zealand and Ireland. It also peaked at number 13 on the US Billboard Hot 100.