Listen to Tango Kelaayo online. Tango Kelaayo is a Tamil language song and is sung by A.R. Rahman, Haricharan and Diwakar. Tango Kelaayo, from the album Kaatru Veliyidai (Original Motion Picture Soundtrack), was released in the year 2017. The duration of the song is 4:50. Download Tamil songs online from JioSaavn.