Das Ich | Ich bin ein Berliner | Phan Huy Ích | Innsbruck, ich muss dich lassen | Ich weiss, es wird einmal ein Wunder geschehen | ''Ich liebe den Höchsten von ganzem Gemüte'', BWV 174 | Ich bin ein Star – Holt mich hier raus! | Ich will den Kreuzstab gerne tragen, BWV 56 | Ich lebe | Ich hatt' einen Kameraden | Canonic Variations on "Vom Himmel hoch da komm' ich her" |
In 2006 participated with Her song "Na kolana" ("On your Knees") in the Piosenka dla Europy 2006 to the Eurovision Song Contest 2006 in which she ended 1st in a draw with Ich Troje but according to rules the group was send to represent Poland due to higher televoting score and they ended 11th in the semifinal, but for Kasia, her song became a hit of the year in Poland and some other parts of Europe.
In the eliminations, the jury composed of some of the aforementioned critics and seasoned performers (chaired by stalwart Maryla Rodowicz) reflected that sentiment by awarding Ich Troje relatively low scores.