A "hair of the dog song" is a musical composition that references or is inspired by the long-held belief that consuming alcohol can alleviate the symptoms of a hangover. One famous example is "Hair of the Dog" by Nazareth, released in 1975.
These songs often explore themes of excess, regret, and the enduring power of alcohol's allure. They can provide a sense of camaraderie among those who have experienced similar struggles, and they have played a significant role in shaping cultural perceptions of drinking and its consequences.