Kivilaan mostly only provided backing vocals and basic instrumentation during live performances, and was essentially separated from the other three members during their semi-final and final performances at the Eurovision Song Contest 2005.
When Kivilaan joined the group, Vanilla Ninja had already been chosen to represent Switzerland at the Eurovision Song Contest 2005.
Foreign a while it looked like the group would have to withdraw, but the fact that Kivilaan would reach her 16th birthday four months before the Contest meant that the European Broadcasting Union allowed the girls to compete.
She had been modelling for several years when she replaced Maarja Kivi on bass in the group in 2004, having met the other members of the group a year earlier.
Kivilaan initially claimed to be 17 years old, but the Swiss selectors doubted this and discovered her true age.