Nueva Trova is defined, not only by its connection with Castro's revolution, but also by its lyrics. The lyrics try to escape the banalities of life (e.g. love) by concentrating on socialism, injustice, sexism, colonialism, racism and similar 'serious' issues. Silvio Rodríguez, Noel Nicola, and Pablo Milanés became the most important exponents of this style. Carlos Puebla and Joseíto Fernández were long-time trova singers who added their weight to the new regime, but of the two only Puebla wrote special pro-revolution songs.