Katarzyna Zielińska is the main organizer of the European Medical Students’ Orchestra and Choir (EMSOC) in 2025 and the founder and president of the Medical University of Silesia Choir. She first joined EMSOC in 2019 in Spain and has since participated in its editions in Sweden and the Czech Republic, singing as an alto. She is also a member of the World Doctors Choir, with which she toured Australia in 2024.

Professionally, Katarzyna is a physician, specialist in internal medicine. She holds a Ph.D. in medical and health sciences, specializing in internal medicine, from the Medical University of Silesia in Katowice, where she also completed her medical studies. In her free time, Katarzyna enjoys traveling, listening to jazz and film music, and playing the guitar.