Sung by Sonu Niigaam and Sunidhi Chauhan, "Jab se mere dil ko uff" is a tribute to Shammi Kapoor who died last year. The star was known for his typcial dancing and singing style.u00a0"The use of the word 'uff' is very Shammi Kapoor. You can almost see his face and his head going back with 'Uff'," Joshi told IANS.