Katarzyna "Kasia" Kowalska (Polish pronunciation: ; born June 13, 1973 in Sulejówek, Poland) is a Polish pop rock singer, songwriter, producer, and actress.

Her musical experience began in the 1980s when she sang as a female vocalist for numerous Polish bands, including Human, Fatum and Talking Pictures. In 1994, she started solo career releasing album Gemini. The album is said to represent her complex personality with the name following her zodiac sign.

In 1995, she took part in the Sopot Festival, where she won Grand Prix. One of the judges was Malcolm McLaren. After that, she released her 2nd album Koncert Inaczej a collection of her live performances and rock and jazz covers.

In 1996, she represented Poland in the Eurovision Song Contest with a song called Chcę znać swój grzech... and finished 15th out of 23 and received 31 points (including 7 from three countries (Turkey, Greece, and Bosnia and Herzegovina but very little from the other ones). Afterwards, she starred in a movie called Nocne Graffiti and recorded a song for soundtrack of the movie. She also recorded a song to the soundtrack of a Disney movie, The Hunchback Of Notre Dame - the prayer of Esmeralda.

She got involved in a relationship with Kostek Yoriadis, the future father of her daughter.

On 2 May 1997, she gave birth to her daughter Aleksandra Julia.

In 2001, she won the MTV Europe Music Award for "Best Polish Artist".

Kowalska writes all the lyrics for her albums by herself, reflecting in large part her own experiences, usually about disappointment in love. She is known as a true "stage animal" because of her strong vocal abilities and great communication with audiences. She collaborates with some of the best Polish musicians, including the great bass player Wojciech Pilichowski.

On 23 June 2008, she gave birth to her second child, son Ignacy Ułanowski.

Her latest album was released on November 10 and is being promoted by the single A Ty Czego Chcesz (And What Do You Want).

Discography Title Album details Peak chart positions Sales Certifications POL Gemini Released: September 18, 1994 Label: PolyGram Poland Formats: CD, digital download — POL: 400,000+ POL: 2x Platinum Koncert inaczej Released: November 20, 1995 Label: PolyGram Poland Formats: CD, digital download — POL: 400,000+ POL: 2x Platinum Czekając na... Released: September 30, 1996 Label: PolyGram Poland Formats: CD — POL: 200,000+ POL: Platinum Pełna obaw Released: June 8, 1998 Label: PolyGram Poland Formats: CD, digital download — POL: 50,000+ POL:Gold 5 Released: November 13, 2000 Label: Universal Music Poland Formats: CD, digital download 3 POL: 50,000+ POL:Gold Antidotum Released: October 14, 2002 Label: Universal Music Poland Formats: CD, digital download 1 POL: 70,000+ POL: Platinum Samotna w wielkim mieście Released: September 13, 2004 Label: Universal Music Poland Formats: CD, digital download 1 POL: 35,000+ POL:Gold Antepenultimate Released: November 10, 2008 Label: Universal Music Poland Formats: CD, digital download 2 POL: 15,000+ POL:Gold Ciechowski. Moja krew Released: November 29, 2010 Label: Universal Music Poland Formats: CD, digital download 17 "—" denotes a recording that did not chart or was not released in that territory.