Bollywood star Aamir Khan is going to attempt something no other Khan
 has done before. He will be 'rapping' for his upcoming film 'Dangal'. 
The actor, who has lent his vocals in the past, to the track 'Aati Kya 
Khandala' in the film 'Ghulam', will reportedly take over the microphone
 once again for his wrestling-themed film. Reports state that Aamir will
 soon be recording a rap number that will be used for the film's 
promotions. The actor will first record the song before beginning 
shooting for the video. The track has been composed by Pritam, written 
by Amitabh Bhattacharya and will feature only Aamir at vocals. Living up
 to his 'Mr Perfectionist' title, Aamir has already begun practice 
sessions and is working hard to perfect the song.
Source: Time of India