Listen to Badass - Theme Music online. Badass - Theme Music is a Tamil language song and is sung by A.R. Rahman, Raqueeb Alam and Nakul Abhyankar. Badass - Theme Music, from the album Nenjil Thunivirunthal, was released in the year 2017. The duration of the song is 0:54. Download Tamil songs online from JioSaavn.