 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.The Castro administration gave plenty of support to musicians willing to write and sing anti-U.S. imperialism or pro-revolution songs, an asset in an era when many traditional musicians were finding it difficult or impossible to earn a living.In 1967 the Casa de las Américas in Havana held a Festival de la canción de protesta (protest songs).