Listen to Kannathil Kannam online. Kannathil Kannam is a Tamil language song and is sung by S.P.Balasubramaniam and K.S. Chitra. Kannathil Kannam, from the album Watchman Vadivel (Original Motion Pictures Soundtrack), was released in the year 2018. The duration of the song is 4:41. Download Tamil songs online from JioSaavn.