Listen to Happy - Naalu Kazhudha (Karaoke) online. Happy - Naalu Kazhudha (Karaoke) is a Tamil language song and is sung by Santhosh Narayanan. Happy - Naalu Kazhudha (Karaoke), from the album 36 Vayadhinile, was released in the year 2015. The duration of the song is 3:16. Download Tamil songs online from JioSaavn.