This episode of 'Once Upon a Crime' revisits a popular series from Season 1 titled 'The Day the Music Died,' focusing on the tragic endings of musical icons, including Selena Quintanilla Perez. 
The episode explores Selena's rise to fame as a star in Tejano music, her groundbreaking achievements, and her untimely death at 23. Additionally, it delves into Selena's early life and career, her family's influence, the formation of Selena y Los Dinos, and her significant impact on Tejano and pop music. The episode also covers her troubled relationship with Yolanda Saldivar, who was convicted of embezzling from Selena’s businesses and ultimately responsible for her tragic death.