Catarina Pereira ( born June 13 1990 ) is a Portugese singer and actress who competed with her song , `` Canta por mim '' ( Sing for me ) , for the chance to sing for Portugal at the Eurovision Song Contest 2010 . Catarina Pereira ( born 13 June 1990 ) is a Portuguese pop singer and actress . She competed in Festival da CanÃ Ã # o 2010 , with the song `` Canta Por Mim '' , finishing in second place , even winning the public voting .