"Old School" is a song written by Russell Smith and Don Schlitz, and recorded by American country music artist John Conlee.

The song reached #5 on the Billboard Hot Country Singles & Tracks chart.

After graduation, the two part ways; while he becomes a truck driver and family man, her marriage to a highly-successful businessman makes front-page headlines.

Eventually, he learns that his high school sweetheart was abandoned or predeceased by her husband (after having "made his mark on the world"), left with several children and a big house with swimming pool; her children now go to the "old school."

However, he declines the temptation, telling her he's from the "old school," taking on the phrase's other meaning: That he adheres to traditional values of fidelity, and that his heart is staying true to his wife, before expressing disappointment that she is no longer from the "old school."