The original lyrics and music were written by George "Dumpy" Bowles in 1911.
The lyrics to the song are generally not sung, instead, fans do a specific clap as the KU band plays the melody.
The song was updated in 1958 to reflect the teams of the Big 8 Conference.
The lyrics were rewritten again in 2010 to account for the departure of Nebraska and Colorado from the Big 12 Conference.
[1] The school has elected to not rewrite the lyrics following the departure of Texas A&M and Missouri from the league.