She is a graduate of the Warsaw University of Life Sciences. She sang in gospel choir "Soul Connection". She is the winner of the first season of the Polish contest Studio Garaż in the category Rhythm and blues. She has worked among others with Pezet, Onar, Pih, Ramona 23, WSRH, Wet Fingers and Endefis. In 2011, she took part in the first season of the Polish talent showX Factor. Since 2013, she has worked with Donatan. On 25 February 2014, it was announced by TVP in the talk showŚwiat się kręci that Cleo together with Donatan, with their song "My Słowianie", will represent Poland in the Eurovision Song Contest 2014 in Copenhagen, Denmark. They finished 14th in the final, scoring 62 points. This has caused controversy as in the tele-vote result Poland was ranked 5th, with 162 points. However, Poland did not receive any points from the UK and Ireland despite being first in the public voting. This occurred as both the British and the Irish juries placed them last. It has been widely commented by media such as The Independent, BBC News, The Telegraph, The Guardian and the Daily Mirror. In 2015, she took part in fourth season of Taniec z Gwiazdami aired in Polsat, partnered with Jan Kliment. She was one of the favourites to win, but placed third out of eleven participants. In December that year, Cleo signed a solo record deal with Universal Music Poland and released her first single "Zabiorę Nas" on 30 December. On 13 May 2016, Cleo signed next a solo record "Wolę być" and 5 July "N-O-C". At the end of September, Cleo was nominated for the MTV Europe Music Awards 2016 in the "Best Polish Artist" category. In December she presented the music video for the single "Na pół". On 26 May 2017, the re-release of her second album entitled Bastet, which was enriched with a second CD containing two new songs and instrumental versions of songs from the album. In June, Cleo confirmed in an interview for Plejada that she is working on material for the third studio album. In October she presented a music video for the song "Pali się". She also recorded the Christmas song "Coraz bliżej święta" recorded for the advertising campaign of the Coca-Cola brand. On 27 November, an official music video for the song was released. On 7 February 2018, she presented the video for the single "Łowcy gwiazd", and on 6 June—a clip for the song "Eva", which she recorded in a duet with Mesajah.
