Classify 4 portuguese musicians

[aimar]

1)
http://1.bp.blogspot.com/-AbwEpCFU9yI/T7NqeLpOXnI/AAAAAAAAPMw/48ZrlPBuWcM/s1600/águadoce.JPG

2)
http://img0.rtp.pt/icm//thumb/phpThumb.php?src=/rtpmemoria/images/d8/d8cdf5ee1c7c3123c65ee534b4435f93&w=490&sx=0&sy=0&sw=487&sh=365&q=75

3)
http://4.bp.blogspot.com/-7vLn9ZxzfR4/TjiRbmUnB-I/AAAAAAAABCc/dKGx1YL0hBQ/s1600/MARCIA79050_rita+carmo.jpg

4)
http://diariodigital.sapo.pt/images_content/2014/KatiaGuerreiroFado2014.jpg