"1-2-3" is the debut single of British dance trio the Chimes, written by group members Pauline Henry, Mike Peden, and James Locke. Along with the track "Underestimate", their debut single reached number one for two weeks on the US Billboard Dance Club Songs chart and is also their biggest single. "1-2-3" was the Chimes' only Billboard Hot 100 hit, peaking at number 82. Although the song stalled at number 60 in the band's native UK, it found chart success in New Zealand, where it peaked at number four.