MUMBAI: Ready to bedazzle every eye with her sexy, hot appearance in The Dirty Picture, Vidya Balan who shares a great chemistry with Amitabh Bachchan, charmed him to dance with her on the Ooh la La number from The Dirty Picture.

Balan, who paid a visit to Bachchan’s show Kaun Banega Crorepati on Monday, was wearing a blood red saree, the same one that she is seen wearing in her film.

"It was an impromptu performance. Vidya just told Mr. Bachchan ‘Thoda Ooh la la karne ka man kar raha hai’. Bachchan laughed in his inimitable style. He then immediately got up, stretched out his hand and they danced till they could not control their laughter," said an eyewitness.

Bachchan didn’t mind Balan taking the liberty at all; in fact he enjoyed it quite a bit. He danced to his own steps and Vidya copied his every move.

The episode will be aired on 10 November.