She has recorded four albums. The first was "Mozaika" from 2000. In 2007 Kasia admitted she does not like "Mozaika" and is not surprised that it wasn't popular in Poland. Her next album was "Feniks" ("Fenix"). 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 sent to represent Poland due to higher televoting score and they ended 11th in the semi-final, but for Kasia, her song became a hit of the year in Poland and some other parts of Europe. "Ostatnia Szansa" ("Last Chance") was her second single from "Feniks" reaching No. 1 on MTV Poland. She released "Potrafię kochać" ("I can love") as her third single.