Pawan Kalyan is expected to sing in the upcoming film 'They Call Him OG'. The film, directed by Sujeeth, features Priyanka Arul Mohan in the lead role. It also stars Emraan Hashmi, Prakash Raj, Sriya Reddy, Arjun Das, and Harish Uthaman. Pawan Kalyan's vocal role in the movie is anticipated to be a unique aspect, adding to the excitement of his fans.