Pee Loon song promo of Once Upon a Time in Mumbaai Producer: Ekta Kapoor, Shobha Kapoor Director: Milan Luthria Cast:Ajay Devgn, Emraan Hashmi, Kangna Ranaut, Prachi Desai, Gauhar Khan, Randeep Hooda, Imran Hasnee, Avtar Gill, Naved Aslam, Mehul Bhojak, Ravi Khanwilkar, Arbaaz Ali Khan, Sanjeev Wilson