Mariachi Las Pioneras de Mexico is a group of elderly women mariachi singers and musicians who originally played in two of the most popular women's groups of the '50's and '60's, Las Estrellas de Mexico and Las Coronelas. They reunited in 2008 after being discovered by scholar/musician Laura Sobrino and her collaborators. They have been teaching symposiums on women in mariachi and performing as a group since then. They are featured in the film El Mariachi Feminil and have just completed an album to be released in March 2013.