Mumbai: Bollywood actors Anil Kapoor and John Abraham seemed all energetic as they kept dancing on the title track of their upcoming film “Welcome Back”. At the launch of “Welcome Back” title track, the leading men of the film — Nana Patekar, Anil and John — shook their leg when Mika Singh was singing the song. There were reports that Anil was unhappy with this song but he denied it, saying, “Who said I did not like the song.”Mika, who lent his voice for the title track, feels grateful to the makers to rope him. “I feel lucky I got opportunity to sing song in ‘Welcome Back’. It’s a big project. I am fan of Uday bhai (Nana Patekar)… Majnu bhai (Anil Kapoor)… I am glad I got to sing the song,” Mika said. Choreographer Ganesh Acharya said it was easy for him to make Anil and Nana Patekar dance and they even rehearsed.