Listen to Ek Baar Muskura Do online. Ek Baar Muskura Do is a Hindi language song and is sung by Asafuddowlah. Ek Baar Muskura Do, from the album Yaadon Ki Pukar, was released in the year 2006. The duration of the song is 5:24. Download Hindi songs online from JioSaavn.