Career
When Assia was a young girl she was a dancer. In 1940, however, she stood in for a female singer. People who heard her singing liked it, so she changed from dancing to singing.
She had also been in the German national final of that year and returned to the contest again for Switzerland in 1957 and 1958.
In September 2011, Assia entered her song written by Ralph Siegel and Jean Paul Cara into the Swiss national selection for the 2012 in Baku, Azerbaijan. The song, however, only came eighth in a closely fought national selection.
She attended the event in Baku as a guest of honour. In 2012, Assia again entered the Swiss national selection Die grosse Entscheidungs Show to represent Switzerland in Malmö at the 2013 with the song featuring the hip-hop band New Jack.
There were rumours of Assia representing San Marino, however it was announced on 30 January 2013 that Valentina Monetta would represent San Marino.
In 1957 she became the first artist in the to perform in the contest on her birthday. lieutenant took 30 years for a repeat occurrence with Sanja Doležal, lead singer from Novi fosili group, representing Yugoslavia in 1987.