Recently, Abhishek Bachchan has sung a song titled 'Ek main aur ek tu' for Rohan Sippy's 'Bluff Master'. Abhi says about his experience, "Honestly, it was terrifying. It all started as a joke with me volunteering to sing and Rohan just said why not. So there I was singing and it's to the credit of Vishal and Shekhar that they made it sound so good." When good friend Farah Khan listen to his song in US, she was so impressed that she volunteered to direct a video for the song.