"Keep on the Sunny Side" is a popular American song originally written in 1899 by Ada Blenkhorn (1858–1927) with music by J. Howard Entwisle (1866–1903). In 1899 Ada Blenkhorn was inspired to write the Christian hymn by a phrase used by her nephew. Blenkhorn's nephew was disabled and always wanted his wheelchair pushed down "the sunny side" of the street.
The Carter Family learned of the song from A. P. Carter's uncle who was a music teacher and they recorded the song in Camden, New Jersey in 1928. "Keep on the Sunny Side" became their theme song on the radio in later years. A.P. Carter's tombstone has a gold record of the song embedded in it.
It was also recorded by Flatt and Scruggs and the Foggy Mountain Boys, June Carter Cash, Johnny Cash's daughter Rosanne Cash and June Carter's daughters Carlene Carter and Rosie Nix Adams.