Blonde Luciana auditioned for Idolos, the Portugese version of Pop Idol, in 2004 but didn’t make it to the final.
Cristiano, 22, has remained tight-lipped about his new relationship - despite Luciana being spotted sitting with his sister Katia at a football match in Lisbon.
A year later the 22-year-old performed for Eurovision as half of duo 2B but again failed to make her mark.
Her big break in showbiz came when she won the lead role in TV show Floribella, playing a poor girl who falls in love with a rich guy.
To catch a glimpse of Luciana, see her perform at the 2005 Eurovision Contest…