After high school and becoming an adult, Sonnet was discovered by a person in the adult entertainment industry. Sonnet agreed to become a model. In late 2003, Sonnet began to model for the popular Polish web site Busty.pl, a website known in Europe and the United States. Sonnet posed for pictorial and videos for the site, in which she stripped topless and, rarely, naked. Sonnet was mostly known for her exceedingly large natural breasts (36EE) and slim body and facial beauty.

In November 2005, Sonnet posed topless for the Polish CKM Magazine. It was Sonnet's first magazine pictorial. In the interview with CKM, Sonnet said that her breasts are all-natural. On December 11, 2005, Sonnet made her first television appearance on The Kuba Wojewodzki Show on the Polsat channel in Poland. Wojewodzki asked Sonnet when her breasts started to grow fast, Sonnet said that it started during her senior year in high school. Sonnet made that appearance on television to promote her new album Nielegalna.

In January 2006, Ewa began performing concerts throughout Poland. She posed again in the November 2006 issue of CKM Magazine.

In October 2006, Ewa released her first album, Nielegalna (Illegal). Since launching her music career, Ewa has received wider recognition and has featured in magazines, on television, and in an interview for University of San Francisco radio station KUSF in March 2006.[1]

On January 16, 2007, Ewa has officially confirmed that she has finished a second album. The album is expected to be released in March and 11 songs have been finished and recorded in Sweden.