Anushka Sharma spanking Salman Khan is the highlight of 'Sultan' item number?

The news of Salman Khan and Anushka Sharma dancing to rapper Badshah's peppy tunes in "Sultan" has everyone talking. But the leading lady spanking the superstar is expected to be the highlight of the item number.

BollywoodLife reported it was the first time Salman had indulged in something this funny. Titled "Baby Ko Bass Pasand Hai," the special number has been choreographed by Farah Khan and boasts of some "cool" moves.

A mix of Punjabi and hip-hop, the song has dance steps that are both desi and spunky. Sources who have watched rushes of the number say some of them are inspired by the West. The chorus is said to be catchy, and plays intermittently through the song.

Meanwhile, director Ali Abbas Zafar has wrapped up shoot of the second song from the film. "Finished the second song @SultanTheMovie with lovely and super entertaining @TheFarahKhan . Heading to edit....double shift, [sic]" he tweeted.

Salman and Anushka have reportedly outdone each other in preparing themselves for their roles in the action-drama. Salman has sworn to stay off alcohol till the last day of shoot, while Anushka has trained hard with wrestling coaches for six weeks.

"Salman plays a wrestler in the film, so training for the character calls for an enormous amount of discipline. He is undergoing rigorous physical training and has been advised to not touch a drop of alcohol till the time the shoot is completely wrapped up," a source told Deccan Chronicle.

Slated for an Eid release, the film also features Amit Sadh and Randeep Hooda in key roles.