The structure also functions as a mausoleum for the heroes of the Mexican Revolution of 1910, Francisco "Pancho" Villa, Francisco I. Madero, Plutarco Elias Calles, Venustiano Carranza, and Lazaro Cardenas. On December 4,2011 Britney Spears performed a free concert at the Monument to the Revolution as a part of her Femme Fatale Tour.