Polish-Canadian Mezzo-soprano Katarzyna Sadej was born in Wrocław, Poland, and is based in Los Angeles, California. She sings internationally in concert, opera, chamber music, oratorio and recital. Katarzyna has performed numerous world premieres and has had over a dozen new works composed especially for her. Katarzyna specializes in recital performance, and has performed numerous recitals in Canada, USA, England, France, Ukraine, Romania, Croatia, Serbia, and Montenegro. She regularly partners with pianist Basia Bochenek in California and beyond, collaborating as the duo Kasia & Basia. She has performed at LA Opera, San Diego Opera, Carnegie Hall, Opera Lyra Ottawa, the Ojai Music Festival, Festival Mozaic, among other prestigious venues.