"Say Something" did not sell significantly well until the version with Aguilera was available. It debuted at number 16 on the "Billboard" Hot 100 chart after A Great Big World and Aguilera performed the song on "The Voice". It eventually peaked at number four and has since sold over six million copies in the United States. It also topped the singles charts in Australia, the Flanders region of Belgium, and Canada. A music video was released on November 19, 2013, featuring the trio singing as people "act out the heartbreaking lyrics." To further promote "Say Something", A Great Big World and Aguilera performed the track at the American Music Awards of 2013.