Listen to Hum Kaun Hain online. Hum Kaun Hain is a Hindi language song and is sung by Laxmikant - Pyarelal, Asha Bhosle and Suresh Wadkar. Hum Kaun Hain, from the album Selected Songs From Hum Hain Lajawab All Rounder, was released in the year 1984. The duration of the song is 7:10. Download Hindi songs online from JioSaavn.