Actress-producer Dia Mirza says "Happy birthday" is sung across the world "regardless of region, religion, culture".
She tweeted: "If there were one song that would be sung the world over, regardless of region, religion, culture, what would it be? I say #HappyBirthday!"
On the work front, Dia will be seen in Sanjay Dutt's biopic being helmed by Rajkumar Hirani. She will play the role of Sanjay's wife Manyata.
