Piotr Dominik Siara, known professionally as KęKę, was born on 15 September 1983 in Radom, Poland, and established himself as a Polish rapper. He began his career with the single "Wyjebane (Tak Mocno)" in 2015, which led to EPs Basement Disco and Takie Rzeczy. In 2015 he signed with Prosto Label, releasing Nowe rzeczy and Trzecie Rzeczy in 2016. The 2019 album Mr KęKę reached a commercial peak, and 2021’s Siara continued his chart success with the single "Tryb ON". In 2022 he released "Gdy przyjdzie czas" and in 2024 followed with singles "Pełen Obraz", "Pewex", and "Nic pod dyktando". He released the studio album 04:01 in 2024, followed by the single “Danger” in 2026.