Rockstar whole album is super fantastic but one track that simply class apart is "Kun Faaya Kun". In this movie Ranbir Kapoor has shed his boy next door image and we believe this is his best work done so far. This song is sung by Mohit Chauhan, Javed Ali, A R Rahman whereas lyrics are penned down by Irshaad Kamil who has also given lyrics in hindi movie Mausam. Enjoy & play exclusively on T-Series. <br /> <br />Song -Kun Faya Kun <br />Film - Rockstar <br />Singer - A.R. Rahman, Javed Ali, Mohit Chauhan <br />Lyricist - Irshaad Kamil <br />Music Director - A.R. Rahman <br />Artist - Ranbir Kapoor, Nargis Fakhri, Shammi Kapoor, Others <br />Music On - T-Series
