We are proud of you our dear,
Osogbo Grammar School,
Begun in 1950 by Oba Adenle,
First in Osun Division,
Father of all other schools,
The pride of Osun State,
Keeping on pushing our dear school,
May you live long,
Our dear school,
Alma mater of the great,
Supported by men so wise,
Founded on the strength of tradition,
Keep on pushing dear,
You will never fall.
