John Abraham finds it hard to keep up with Anil Kapoor

At this very moment, Anees Bazmi is shooting a special promotional song for his new comedy Welcome Back. The entire cast of the film is participating in the song-and-dance.

But it's Anil Kapoor who is setting the dance floor on fire.

Says a source from the location, "The frenzied dance number is sung and composed by Mika and the choreography is by Ganesh Acharya. The number has turned out to be really high-energy. And the one displaying the highest energy-level is Anil Kapoor. He easily out-did John in the energy department."

John, we might add, has perpetually suffered from the 2-left-feet syndrome. Lately he has been working hard on his dancing steps. But to keep pace with Anil's volcanic vivacity is a bit hard for even the most seasoned of dancers.

Speaking about the special promotional number for Welcome Back director Anees Bazmi said, "We've gone all-out to ensure that the number is a highlight in the film. The entire cast of Nana Patekar, Anil Kapoor, John Abraham, Shruti Haasan and others have shot for the song. We haven't used the title song from the earlier Welcome film. It's a fresh recording and a new choreographer. We wanted everything to be completely new in the promotional song for the sequel."