"Say Something" is a song by the American duo A Great Big World featuring Christina Aguilera. Released in 2013, it gained popularity for its emotional lyrics and haunting melody, addressing themes of love, loss, and longing. The song's poignant message resonates with listeners, making it a favorite for many. The collaboration between A Great Big World and Christina Aguilera showcases their vocal talents, blending pop and indie elements. The track received critical acclaim and commercial success, reaching high positions on various music charts. Its heartfelt delivery has made "Say Something" a staple in contemporary music playlists.