Listen to UonU (feat. Yung Bleu) online. UonU (feat. Yung Bleu) is an English language song and is sung by KaLiii. UonU (feat. Yung Bleu), from the album Toxic Chocolate: Area Codes Edition, was released in the year 2023. The duration of the song is 3:38. Download English songs online from JioSaavn.