Here Come the 123s is the third children's album and thirteenth studio album by They Might Be Giants. It is the sequel to the group's 2005 album Here Come the ABCs. The songs are edutainment music, and like ABCs, both a CD and DVD were released. It was initially set to be released on October 2, 2007, but was pushed back to February 5, 2008.

They Might Be Giants, often abbreviated as TMBG, is an American alternative rock band formed in 1982 by John Flansburgh and John Linnell. During TMBG's early years, Flansburgh and Linnell frequently performed as a musical duo, often accompanied by a drum machine. In the early 1990s, TMBG expanded to include a backing band. The duo's current backing band consists of Marty Beller, Dan Miller and Danny Weinkauf. They have been credited as vital in the creation and growth of the prolific DIY music scene in Brooklyn in the mid-1980s.