The music of the film has been composed by the maestro
A.R. Rahman and he's got Alia to sing a very soulful lullaby,
'Sooha Saha'. Zeb Bangash, of the famous Pakistani duo Zeb & Haniya, has also sung in the song.
In the film Veera (Alia's character) and Mahabir (played by
Randeep Hooda) take the road and traverse through six states of northern India. As the journey moves from the plains of Panjab to the hills of Himachal, Veera sings this lullaby, which reminds Mahabir of his childhood.
Both Imtiaz and Rahman agreed that if Alia sang a stanza herself, it would add more poignance to the scene.
"We have this lullaby, Sooha Saha in Highway...Imtiaz said Alia has a great voice and I didn't trust him. Then she learned the song and sang to me and I was pretty impressed with her natural ability too. We guided her a little bit to perfect the singing. She did it twice and then we got it almost right and now it sounds great," says Rahman.
An excited Alia Bhatt adds, "It was unreal. I am a bathroom singer but to have the opportunity to sing a song composed by Rahman sir was unbelievable. This film is so close to my heart not just for acting but for singing too now!".