"1234" is a song from Feist's third studio album, The Reminder. The song was co-written by Feist and Sally Seltmann, an Australian singer-songwriter who also recorded under the stage name New Buffalo. It remains Feist's biggest hit single in the US to date, and her only song to chart on the Billboard Hot 100 and UK Top 40.

Leslie Feist, known mononymously as Feist, is a Canadian and American indie pop singer-songwriter and guitarist, performing both as a solo artist and as a member of the indie rock group Broken Social Scene.