Listen to Agar Kabhi Tum Humse online. Agar Kabhi Tum Humse is a Hindi language song and is sung by Alka Yagnik and S. P. Balasubrahmanyam. Agar Kabhi Tum Humse, from the album Hum Hain Kamaal Ke, was released in the year 1993. The duration of the song is 4:58. Download Hindi songs online from JioSaavn.