"Doing a music video for Don2... beard struggling to grow back. I really enjoy being Don... all that I am not I get to do, " Shah Rukh posted on twitter page.
The 46-year-old is sporting several looks in the film and in one of them he will be seen sporting a stubble and long hair.
Directed by Farhan Akhtar, the film will release Dec 23 and has Priyanka Chopra in the lead role.