'Butterfly', a new song from the Shah Rukh Khan and Anushka Sharma starrer Jab Harry Met Sejal has been released. The song has been composed by Pritam, with vocals by Aaman Trikha, Nooran Sisters, Dev Negi, Sunidhi Chauhan, and lyrics by Irshad Kamil. Directed by Imtiaz Ali, the film is scheduled to release on August 4.