Listen to Ao Hum online. Ao Hum is a Hindi language song and is sung by Ustad Amjad Ali Khan, Amaan Ali Bangash, Ayaan Ali Bangash and Children. Ao Hum, from the album Ustad Amjad Ali Khan Sings With Children, was released in the year 2004. The duration of the song is 2:57. Download Hindi songs online from JioSaavn.