Listen to Diwani Diwani - JB online. Diwani Diwani - JB is a Hindi language song and is sung by Bappi Lahiri, Lata Mangeshkar and S.P. Balasubrahmanyam. Diwani Diwani - JB, from the album First Love Letter- Jhankar Beats, was released in the year 1993. The duration of the song is 8:33. Download Hindi songs online from JioSaavn.