At the time, the rules of the Eurovision Song Contest did not allow groups to compete, so Patricia performed as a solo singer, while Bianca and Stella joined her on stage as backing vocalists.

[1] From 1971 onwards, the sisters worked as session singers for several artists, including Dusty Springfield and Rika Zaraï.

[4] In 1975, Bianca's boyfriend (and future husband) Luc Smets, a former member of the Belgian band The Pebbles, joined the group to form Dream Express.

Their entry "A Million in One, Two, Three" went on to win the final and was thereby chosen to represent Belgium in the Eurovision Song Contest 1977, held in London, United Kingdom.

[5] After Patricia decided to leave the group, Dream Express changed its name to LBS (an acronym for Luc, Bianca and Stella) in 1979.

[8] At the Eurovision Song Contest 1986, Patricia provided backing vocals for the winning entry "J'aime la vie", performed by Sandra Kim.