'Yama Greatu' is much along the lines of a 'Kabali' song (read 'Merupu').  Santhosh Narayanan chips in the services of Hariharasudhan to complement his own singing talent.  Their voices come with an aura of irreverence.  Chinna, Britto and RK Sundar do the chorus.  

The lyrics and Rap Verses of Pranav Chaganty and Dopeadelicz go into extolling the life of the slum dwellers, whose hero is Kala Sait (Superstar Rajinikanth).  It's as if the song was tailor-made for a May Day release: "Black is the colour of our labour. Victory will be in Kaala’s favour. You will run away if he glares at you.  He will break you into pieces if you dare.  Be careful! This is Dharavi!" the English translation of the lyrics go.  

From guitar zaps, percussions and rap portions, the track makes the right 'trumpet' noises.  

The full jukebox will be out on May 9.  The Rajinikanth-Pa.Ranjith movie will hit the screens on June 7.