Corridos are a traditional form of Mexican narrative ballads that tell stories about historical events, social issues, or the lives of famous figures. They often feature themes of love, betrayal, and heroism, and are typically performed with guitar or other instruments. These songs originated in the 19th century and have evolved over time, incorporating elements of narcoculture and contemporary issues. Corridos serve as a way to preserve cultural history and express the experiences of the Mexican people, making them an important part of Mexican musical heritage.