The 46-year-old actor, who has earlier lent his voice partially for 'Singh Is Kinng', uploaded the Youtube link of the making of the song on micro-blogging site Twitter.
"And here's a brand new track from 'Entertainment' sung by yours truly :) Enjoy!," he wrote along with the link.
'Entertainment' is a slapstick comedy film directed by debutante duo Sajid-Farhad and stars Tamannaah Bhatia opposite Akshay. The film is expected to hit theatres on August 8.
The other celebrities who recently sung in their films are Shraddha Kapoor (Ek Villain), Alia Bhatt (Highway and Humpty Sharma Ki Dulhania) and Salman Khan (Kick).