Listen to I Don't Believe It (feat. Codeine & Nonstop) online. I Don't Believe It (feat. Codeine & Nonstop) is an English language song and is sung by Fatboi. I Don't Believe It (feat. Codeine & Nonstop), from the album Fatboi Forever, was released in the year 2017. The duration of the song is 3:57. Download English songs online from JioSaavn.