Listen to O Jaana Na Jaana - Part 1 online. O Jaana Na Jaana - Part 1 is a Hindi language song and is sung by Kumar Sanu and Lata Mangeshkar. O Jaana Na Jaana - Part 1, from the album Jab Pyaar Kisise Hota Hai, was released in the year 1998. The duration of the song is 4:23. Download Hindi songs online from JioSaavn.