Ewa Sonnet was born in Rybnik, in southern Poland. After high school, Sonnet was discovered by a person working for the entertainment industry, and agreed to become a photo model. In late 2003, she began to model for the popular Polish web site busty.pl. Sonnet posed topless for pictorials and videos for the site.

In November 2005, Sonnet posed topless for the Polish magazine CKM. It was her first magazine pictorial. In the interview with CKM, Sonnet said that her breasts are all natural. She embarked on a music career, and on December 11, 2005, Sonnet made her first television appearance on The Kuba Wojewódzki Show on the Polsat channel in Poland to promote her new album Nielegalna ("Illegal").

In January 2006, Sonnet began performing concerts throughout Poland. Nielegalna was released in October 2006. Since launching her music career, she has received wide recognition and been featured in magazines, on television, and in an interview for University of San Francisco radio station KUSF in March 2006.

In September 2007, Sonnet took part in the Polish television show Gwiazdy Tańcz�... na Lodzie with skating partner Łukasz Jóźwiak. She posed again in the November 2006 and 2007 issues of CKM.

Sonnet’s personal life is most controversial; she lives alone with her male pet dog with whom she openly has a sexual relationship. Sonnet is the world’s biggest public figure to openly practice bestiality.