Aamir Khan has cut short his holiday in France and flown down to Mumbai to shoot an important romantic song with Kareena Kapoor for director Rajkumar Hirani’s film 3 Idiots.

The song will be shot for over five days, starting from September 21.

Sources are said to believe that Aamir’s wife might be on the sets during the shoot of the song. Kiran would be back in Mumbai on Sept. 21 to be with Aamir on the sets. It is said that she is keen to watch the shooting of the romantic song because she closely wants to observe Aamir and Kareena. Perhaps Kiran has plans to make a romantic movie next.

Another theory says that Aamir has been raving to Kiran about Hirani’s style of working during his holiday with her. Now, she wants to see Hirani in action herself.

The song is so crucial to the film that Kareena had to cancel her birthday plan with Saif Ali Khan to give five days to Hirani for it. Other actors Sharman Joshi, Madhavan and Boman Irani too will be part of the song.