Go to the official store right now and get Monica Sanz's singles!
It's the easiest way:
1.-You mark the singles you want and get your ticket
2.-You know the account by mail, to send the money. Totally sure!
3.-You listen Monica as high as you want!
http://monicasanz.com/TiendaOnline/tabid/81/language/es-ES/Default.aspx
Monica Sanz's music is available too on Itunes, Amazon, E-Music, Nokia and even, Spotify!!!