Akshay Kumar and Katrina Kaif had sizzling chemistry not only on-screen but the duo were always known for their off-screen chemistry and their level of comfort with each other was clearly visible whenever they graced any events or parties together. They are known as the golden pair of bollywood making box office history whenever they shared a screen space, that’s why when well know director Farah Khan signed the duo for her mega project Tees Maar Khan she was on cloud nine. Everything was going smoothly for Farah until recently when Akshay Kumar got into a verbal spat with his Tees Maar Khan co-star Katrina Kaif over her being unable to shoot for a music video.

Says a source, "This is the first time Akki and Kat got into an actual fight. Her saying no got him all worked up. He reminded her of past adjustments he had made for her. Kat, on her part, said that she wouldn't be able to share dates till mid-October as the YRF banner was important to her and that the schedule was locked."

Adds the source, "Things really soured between Kat and Akshay over the date imbroglio. They stopped talking to each other for a while. But then, Farah stepped in. The duo is shooting a qawalli in Mumbai with Salman Khan and FK didn't want their cold vibes to spoil the song."

Farah spoke to her heroine and everything has been sorted out. "The video will be shot on October 15. Katrina managed to get YRF to allow her to shoot for the title track video featuring the entire star cast. In any case, Kat is very fond of Akshay and will not allow their relationship to sour." Reveals an insider from the unit.

This song sequence is the highlight of the film Katrina, who plays a wannabe item girl in the movie, will be accompanied by Salman Khan and co-star Akshay Kumar in the song. Salman is making a special appearance in the song. Katrina will be seen as grace personified a la Meena Kumari form 'Pakeezah', says the director. "Katrina would be seen in an altogether different avtar in this 'qawalli'. While Akshay and Salman can be expected to have a lot of fun with this track, it belongs to Katrina as she would surprise the audience," Farah said.

"Katrina's look has been modelled on 'Pakeezah' though I don't wish to spoil the fun by disclosing more than that as of now," said Farah, adding that the 'qawalli' will have a quintessential Mumbaiyya feel to it with a 'masala mix' feel to it.

It is Farah's third film after Main Hoon Naa and Om Shanti Om, both of which starred her best friend Shah Rukh Khan. Farah says the film will be complete after the song. In fact quite some emphasis is being put on the way Katrina would make an entry in the song.

With the first half of the song is dominated by Salman and Akshay, Katrina would arrive in the middle of the 'qawalli' and would join the boys in all the fun right till the end.

"Do you remember Yeh Ishq Ishq Hai Ishq Ishq, the 'qawalli' from Barsaat Ki Raat which was created 50 years back? It still sounds so fresh. The 'qawalli' in Tees Maar Khan, though not exactly like that, is on the same lines," Farah said.

Asked whether Akshay was okay with the idea of introducing Salman Khan in the song, Farah said, "When I shared the idea with Akshay, he was game for it. He had a big smile on his face when I said that the song would feature the two of them along with Katrina." Added the director.