Katrina Kaif has struck a unique deal with her Tees Maar Khan director Farah Khan. The two start shooting for a new song in August. While Farah has promised Kat that it will be the year's biggest hit, the actress has promised her director that she would share a certain percentage with her if she gets shows because of the song.

Kaif, who is currently shooting for Zoya Akhtar's Zindagi Milegi Na Dobara in Spain, says, "It'd be one of the raunchiest songs I have ever shot. Farah is extremely confident about the song and has promised me it will be one of the biggest hits of this year!

She says I will get to perform it at all the shows in 2011. In return, I have assured her that if the song turns out great and I get to do lots of shows next year, I will give her a percentage from every show where I dance to this song. It's a unique deal because no star promises their director a percentage from their shows."

Even though it goes down a month from now, Katrina is all excited with what she would be wearing. She reveals, "I will wear short ghaghra cholis or short tops showing my navel and dhoti. For the last 10 days, I have been training four times a week for two hours for the song with my trainer Yasmin Karachiwala."

The song will have Katrina doing sensuous stuff like belly dancing and aerial dancing with silky fabrics, a first for the actress. "It's a take off dances from various musical plays and I have been rehearsing a lot. There's a western singer who performs on rope very sensuously and my dance will be something like that, but we won't use cables or harnesses."

Source: Mid-day