Katriina Ullakko (b. 1994) also known as Olivera, is a Finnish singer and songwriter. She participated in Uuden Musiikin Kilpailu (Contest for New Music) in 2022 with the song "Thank God I'm an Atheist".
Katriina Ullakko (b. 1994) also known as Olivera, is a Finnish singer and songwriter. She participated in Uuden Musiikin Kilpailu (Contest for New Music) in 2022 with the song "Thank God I'm an Atheist".
