Listen to Jawaniyan Yeh Mast Mast (From "Tumsa Nahin Dekha") online. Jawaniyan Yeh Mast Mast (From "Tumsa Nahin Dekha") is a Hindi language song and is sung by Mohammed Rafi and O. P. Nayyar. Jawaniyan Yeh Mast Mast (From "Tumsa Nahin Dekha"), from the album Playback - Mohammed Rafi Sings For Shammi, was released in the year 2016. The duration of the song is 3:04. Download Hindi songs online from JioSaavn.