Listen to I Don't Know (Originally Performed by Ozzy Osbourne) online. I Don't Know (Originally Performed by Ozzy Osbourne) is an English language song and is sung by DJ MixMasters. I Don't Know (Originally Performed by Ozzy Osbourne), from the album Ultimate Rock Ringtones - Ozzy Osbourne, was released in the year 2017. The duration of the song is 0:28. Download English songs online from JioSaavn.