Listen to O Yaar Janu Jani online. O Yaar Janu Jani is an Urdu language song and is sung by Humera Channa. O Yaar Janu Jani, from the album Hum Tumhare Hain, was released in the year 1999. The duration of the song is 2:37. Download Urdu songs online from JioSaavn.