Pop singer known as Cleo who attended Eurovision Song Contest 2014 as a representative of Poland with Donatan. She sang "My Słowianie." Her 2014 debut album Hiper Chimera reached number one on the Polish charts. She has more than 950,000 followers on her cleo_don Instagram account.
She graduated from Warsaw University of Life Sciences.
She won the first season of Poland's Studio Garaż in the rhythm and blues category. She then partook in the first season of Poland's X Factor in 2011.
Her brother is Piotr Klepko.
She and Sarsa Markiewicz have both been on Poland's X Factor.