Director Ayan Mukerji dances to Ranbir Kapoor's tunes while shooting for their track 'Badtameez Dil'

A source says, `There are a lot of youngsters on the sets. And they don't let go of any opportunity where they can have some fun.`



Ayan's good friend Ranbir Kapoor, who stars inthe film, insisted he become part of the track and refused to shoot for it if his buddy didn't comply.


The source says, `There is a scene where someone pops open a champagne bottle and even smears cake on a guy. However, it took some time for everyone to convince Ayan to be part of the shot. RK even wanted Ayan to wear a coat. Finally, the director gave in and shot for the scene.`


Looks like what Ranbir wants, he gets.